{"id":589113,"date":"2026-11-02T16:01:00","date_gmt":"2026-11-02T05:01:00","guid":{"rendered":"https:\/\/science.nasa.gov\/earth\/earth-observatory\/pennsylvanias-grand-canyon\/"},"modified":"2026-11-02T16:01:00","modified_gmt":"2026-11-02T05:01:00","slug":"pennsylvanias-grand-canyon","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=589113","title":{"rendered":"Pennsylvania\u2019s Grand Canyon"},"content":{"rendered":"<div id=\"\" class=\"hds-module hds-module-full alignfull wp-block-nasa-blocks-secondary-navigation\">\n<div class=\"hds-secondary-navigation-wrapper z-top width-100 padding-0\">\n<div id=\"\" class=\"hds-secondary-navigation width-full border-bottom-1px text-center hds-color-mode-dark hds-module hds-module-full alignfull wp-block-nasa-blocks-hdsnav\"><button type=\"button\" class=\"hds-secondary-nav-mobile-button display-flex tablet:display-flex desktop:display-none width-full flex-align-center bg-carbon-90 border-color-carbon-80 color-spacesuit-white\" aria-expanded=\"false\" aria-controls=\"hds-secondary-nav-track\"><span>Earth Observatory<\/span><\/button><\/p>\n<div class=\"hds-secondary-nav-track grid-container grid-container-extrawide padding-0 tablet:padding-x-3 desktop:padding-x-2 hds-secondary-navigation-has-breadcrumbs\">\n<div class=\"hds-secondary-navigation-breadcrumbs display-none tablet:display-none desktop:display-flex flex-align-center\">\n<nav class=\"usa-breadcrumb\" aria-label=\"Breadcrumbs\">\n<ol class=\"usa-breadcrumb__list\">\n<li class=\"usa-breadcrumb__list-item\"><a href=\"https:\/\/science.nasa.gov\/\" class=\"usa-breadcrumb__link\" rel=\"noopener\"><span>Science<\/span><\/a><\/li>\n<li class=\"usa-breadcrumb__list-item\"><a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\" class=\"usa-breadcrumb__link\" rel=\"noopener\"><span>Earth Observatory<\/span><\/a><\/li>\n<li class=\"usa-breadcrumb__list-item usa-current\" aria-current=\"page\"><span>Pennsylvania\u2019s Grand Canyon<\/span><\/li>\n<\/ol>\n<\/nav>\n<\/div>\n<div class=\"hds-secondary-navigation-menu-items\">\n<nav>\n<ul class=\"usa-nav__primary usa-accordion flex-justify-center margin-0\">\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\" rel=\"noopener\">Earth<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\" rel=\"noopener\">Earth Observatory<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/image-of-the-day\/\" rel=\"noopener\">Image of the Day<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/explorer\/\" rel=\"noopener\">EO Explorer<\/a><\/li>\n<li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>Topics<\/span><\/button>\n<ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden>\n<li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/topics\/\" rel=\"noopener\">All Topics<\/a><\/li>\n<li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/topics\/atmosphere\/\" rel=\"noopener\">Atmosphere<\/a><\/li>\n<li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/topics\/land\/\" rel=\"noopener\">Land<\/a><\/li>\n<li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/topics\/heat-radiation\/\" rel=\"noopener\">Heat &#038; 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(opens in a new tab)\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2048\" height=\"1991\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/pinecreekgorge_oli_20261025.jpg?w=2048&amp;h=1991&amp;%23038;fit=clip&amp;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-2048x1991 size-2048x1991\" alt=\"A forested plateau displays red and gold foliage and is incised by several narrow, curving valleys.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">October 25, 2026<\/div>\n<div class=\"hds-credits\">NASA Earth Observatory\/Michala Garrison<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">North-central Pennsylvania is canyon country with an Appalachian flair. Pine Creek Gorge reaches depths of about <a href=\"https:\/\/elibrary.dcnr.pa.gov\/PDFProvider.ashx?action=PDFStream&amp;docID=1752600&amp;%23038;chksum=&amp;%23038;revision=0&amp;%23038;docName=89_GeoFeat_PineCreekGorge_Tioga-LycomingCos&amp;%23038;nativeExt=pdf\" rel=\"noopener\">1,500 feet<\/a> (460 meters) along its gently curving path through the forests of the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Allegheny_Plateau\" rel=\"noopener\">Allegheny Plateau<\/a>. Instead of the <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/grand-canyon-under-snow-144648\/\" rel=\"noopener\">steep rock walls<\/a> characteristic of canyons in the desert Southwest, lushly vegetated slopes outline the dramatic topography. In autumn, greens give way to a palette of reds and golds <a href=\"https:\/\/pabucketlist.com\/where-to-find-incredible-fall-foliage-views-in-the-pa-grand-canyon\/\" rel=\"noopener\">sought out<\/a> by leaf peepers.<\/p>\n<p class=\"wp-block-paragraph\">Nicknamed the \u201cGrand Canyon of Pennsylvania,\u201d the gorge runs for some 45 miles (72 kilometers) from Ansonia south to Pine Creek\u2019s confluence with the West Branch Susquehanna River, reaching its greatest depths around Waterville. The <a href=\"https:\/\/science.nasa.gov\/mission\/landsat\/oli\/\" rel=\"noopener\">OLI<\/a> (Operational Land Imager) on the NASA-USGS <a href=\"https:\/\/science.nasa.gov\/mission\/landsat-8\/\" rel=\"noopener\">Landsat 8<\/a> satellite captured this image of Pine Creek Gorge on October 25, 2026, when colorful fall foliage was on display.<\/p>\n<p class=\"wp-block-paragraph\">Glaciers played a key role in the canyon\u2019s formation, though ice itself did not carve it. Pine Creek once <a href=\"https:\/\/elibrary.dcnr.pa.gov\/PDFProvider.ashx?action=PDFStream&amp;docID=1752600&amp;%23038;chksum=&amp;%23038;revision=0&amp;%23038;docName=89_GeoFeat_PineCreekGorge_Tioga-LycomingCos&amp;%23038;nativeExt=pdf\" rel=\"noopener\">flowed to the north<\/a>, opposite of what it does today. As glaciers advanced into the region from the northeast during the last ice age, they dammed the river and filled the valley with lakes. Those lakes eventually overflowed, sending water streaming to the south.<\/p>\n<div id=\"\" class=\"hds-media hds-module wp-block-image\">\n<div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/pinecreekgorge_pho_20091011.jpg\" rel=\"noopener noreferrer\" aria-label=\"A winding V-shaped valley extends off into the distance, with a river and bike path running along the bottom. (opens in a new tab)\"><img decoding=\"async\" width=\"2048\" height=\"1152\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/pinecreekgorge_pho_20091011.jpg?w=2048&amp;h=1152&amp;%23038;fit=clip&amp;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-2048x1152 size-2048x1152\" alt=\"A winding V-shaped valley extends off into the distance, with a river and bike path running along the bottom.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">Autumn colors emerge along Pine Creek Gorge in this view from Colton Point State Park on October 11, 2009.<\/div>\n<div class=\"hds-credits\"><a href=\"https:\/\/www.flickr.com\/photos\/16502322@N03\/4037795041\" rel=\"noopener\">fishhawk<\/a>, via Flickr<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">When the ice receded, Pine Creek was already becoming entrenched in its southward course. Rocks and sand left behind by the melting ice further prevented the water from turning back north. Glacial meltwater continued to rush through the valley, deepening and shaping it into its current form.<\/p>\n<p class=\"wp-block-paragraph\">Today, the hillsides around the gorge are blanketed in <a href=\"https:\/\/www.naturalheritage.state.pa.us\/Community.aspx?id=16058\" rel=\"noopener\">northern hardwood<\/a> and mixed oak forest, sprinkled with hemlock and white pine. In autumn, the deciduous trees impart <a href=\"https:\/\/www.pa.gov\/agencies\/dcnr\/newsroom\/2026-fall-foliage-oct-22\" rel=\"noopener\">red and gold hues<\/a> to the landscape akin to the rock of the famous <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/a-grand-snow-rimmed-canyon\/\" rel=\"noopener\">Arizona canyon<\/a>.<\/p>\n<div id=\"\" class=\"hds-media hds-module alignwide wp-block-nasa-blocks-image-before-after\">\n<div class=\"NasaBlocksImageBeforeAfterBlock grid-container grid-row grid-container-block bg-spacesuit-white padding-x-0 padding-y-6 margin-x-auto nasa-block-align-wide\">\n<div class=\"padding-x-0 grid-col-12\">\n<p>\t\t\t<!-- curtain view --><\/p>\n<div class=\"img-comparison-slider-parent comparison-view-active\">\n\t\t\t\t<br \/>\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261009.jpg\" alt=\"\"><br \/>\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261025.jpg\" alt=\"\">\n\t\t\t\t<\/p>\n<div class=\"curtain-view-label-wrapper curtain-view-before\">\n\t\t\t\t\t<span class=\"curtain-view-label\">October 9<\/span>\n\t\t\t\t<\/div>\n<div class=\"curtain-view-label-wrapper curtain-view-after\">\n\t\t\t\t\t<span class=\"curtain-view-label\">October 25<\/span>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t<!-- toggle view --><\/p>\n<div class=\"toggle-comparison-parent\">\n\t\t\t\t<!-- if image_1 is active the show image_1 --><\/p>\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover toggle-view-image toggle-view-before-image toggle-view-active\"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261009.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A narrow river valley cuts through a forested plateau in northern Pennsylvania. The vegetation is green with some reddish areas.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-credits\">NASA Earth Observatory\/Michala Garrison<\/div>\n<\/figcaption><\/div>\n<p>\t\t\t\t<!-- if image_2 is active the show image_2 --><\/p>\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover toggle-view-image toggle-view-after-image\"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261025.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A narrow river valley cuts through a forested plateau in northern Pennsylvania. The vegetation appears in shades of autumn reds and golds.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-credits\">NASA Earth Observatory\/Michala Garrison<\/div>\n<\/figcaption><\/div>\n<div class=\"toggle-button-container padding-1\">\n\t\t\t\t\t<button class=\"toggle-view-before-button toggle-comparison-view-active margin-right-1px\"><span class=\"toggle-view-before-label\">October 9<\/span><\/button><button class=\"toggle-view-after-button margin-left-1px\"><span class=\"toggle-view-after-label\">October 25<\/span><\/button>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t<!-- 2-up view --><\/p>\n<div class=\"two-up-view position-relative bg-carbon-10\">\n<div class=\"grid-row\">\n<div class=\"grid-col flex-3 padding-top-4 padding-bottom-4\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261009.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A narrow river valley cuts through a forested plateau in northern Pennsylvania. The vegetation is green with some reddish areas.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-credits\">NASA Earth Observatory\/Michala Garrison<\/div>\n<\/figcaption><\/div>\n<\/p>\n<\/div>\n<div class=\"bg-spacesuit-white width-2px\"><\/div>\n<div class=\"grid-col flex-3 padding-top-4 padding-bottom-4\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261025.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A narrow river valley cuts through a forested plateau in northern Pennsylvania. The vegetation appears in shades of autumn reds and golds.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-credits\">NASA Earth Observatory\/Michala Garrison<\/div>\n<\/figcaption><\/div>\n<\/p>\n<\/div>\n<div class=\"curtain-view-label-wrapper curtain-view-before\">\n\t\t\t\t\t\t<span class=\"curtain-view-label\"><br \/>\n\t\t\t\t\t\t\tOctober 9\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n<div class=\"curtain-view-label-wrapper curtain-view-after\">\n\t\t\t\t\t\t<span class=\"curtain-view-label\"><br \/>\n\t\t\t\t\t\t\tOctober 25\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<p>\t\t\t<!-- Under image content --><\/p>\n<div class=\"grid-row flex-row title-row padding-x-2 desktop:padding-x-0 padding-top-2\">\n<div class=\"grid-col-12 tablet:grid-col-6\"><\/div>\n<div class=\"grid-col-12 tablet:grid-col-6 button-row margin-bottom-3 tablet:margin-bottom-0\">\n\t\t\t\t\t<!-- Update onClick handlers --><br \/>\n\t\t\t\t\t<button aria-label=\"Curtain view\" class=\"comparison-view curtain-view-button comparison-view-active padding-bottom-1 margin-left-1\">Curtain<\/button><button aria-label=\"Toggle view\" class=\"comparison-view toggle-view-button padding-bottom-1 margin-left-1\">Toggle<\/button><button aria-label=\"Two-Up view\" class=\"comparison-view two-up-view-button padding-bottom-1 margin-left-1\">2-Up<\/button>\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<p>\t\t<!-- Image detail area --><\/p>\n<div class=\"image-details-panel padding-x-0\">\n<div class=\"before-after-details-divider padding-y-2\">\n\t\t\t\t\t<!-- OnClick handleImageDetailsClick --><button class=\"image-details-toggle-button\"><span>Image Details<\/span><!-- style - if showImageDetails, then transform rotate(180deg), else none --><\/button>\n\t\t\t\t<\/div>\n<p>\t\t\t\t<!-- if showImageDetails, then display --><\/p>\n<div id=\"image-details\" class=\" padding-x-0\">\n<div class=\"grid-row\">\n<div class=\"grid-col flex-2\">\n<div class=\"image-details-wrapper\">\n\t\t\t\t\t\t\t\tFoliage in the northern hardwood and oak forests around Pennsylvania\u2019s Pine Creek Gorge takes on fall color between October 9, 2026 (left), and October 25, 2026 (right). The images were acquired with the <a href=\"https:\/\/science.nasa.gov\/mission\/landsat\/oli\/\" rel=\"noopener\">OLI<\/a> (Operational Land Imager) on <a href=\"https:\/\/science.nasa.gov\/mission\/landsat-8\/\" rel=\"noopener\">Landsat 8<\/a>. NASA Earth Observatory images by Michala Garrison.\t\t\t\t\t\t\t<\/div>\n<p>\t\t\t\t\t\t\t<!-- File List --><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">This seasonal change around Pine Creek Gorge has not always been so visually pleasing. With increasing demand for wood products in early 19th-century America, loggers found their way to the area\u2019s stately trees. At the time, white pine and hemlock <a href=\"https:\/\/lumberheritage.org\/news-updates\/the-lumber-era-of-pine-creek-gorge\/\" rel=\"noopener\">several feet in diameter<\/a> and towering hardwoods populated the slopes around Pine Creek Gorge. The pines were especially valued for making ship masts, and hemlock bark was used to tan leather. Before railroads, logs were floated down Pine Creek to the Susquehanna in massive drives. By the early 20th century, decades of logging left the land so barren that the area earned the moniker \u201cPennsylvania Desert.\u201d<\/p>\n<p class=\"wp-block-paragraph\">The forest has since returned, and with it, <a href=\"https:\/\/elibrary.dcnr.pa.gov\/GetDocument?docId=3816698&amp;DocName=FD16%20Tioga%20Pine%20Creek%20Gorge%20Natural%20Area%20factsheet.pdf\" rel=\"noopener\">wild inhabitants<\/a> such as black bears, coyotes, bobcats, timber rattlesnakes, and a diversity of songbirds. In 1968, an area of 30,000 acres (12,000 hectares) was designated a <a href=\"https:\/\/www.nps.gov\/subjects\/nnlandmarks\/site.htm?Site=PICR-PA\" rel=\"noopener\">National Natural Landmark<\/a>. Visitors can experience the gorge\u2019s natural splendor at many points along its path, including from multiple state parks and the <a href=\"https:\/\/pinecreekrailtrail.org\/rail-trail-guide\" rel=\"noopener\">Pine Creek Rail Trail<\/a>.<\/p>\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"wp-block-paragraph\"><em>NASA Earth Observatory images by Michala Garrison, using Landsat data from the\u00a0<\/em><a href=\"http:\/\/earthexplorer.usgs.gov\/\" rel=\"noopener\"><em>U.S. Geological Survey<\/em><\/a><em>.<\/em> <em>Photo by <a href=\"https:\/\/www.flickr.com\/photos\/16502322@N03\/4037795041\" rel=\"noopener\">fishhawk<\/a>, via Flickr. Story by Lindsey Doermann.<\/em><\/p>\n<div id=\"\" class=\"hds-featured-file-list bg-spacesuit-white padding-x-2 tablet:padding-x-3 desktop:padding-x-4 padding-y-5 desktop:padding-y-6 hds-module align wp-block-nasa-blocks-file-list\">\n<div class=\"grid-container grid-container-block padding-0\">\n<div class=\"grid-row width-full margin-bottom-4\">\n<div class=\"grid-col-12 desktop:grid-col-6 margin-bottom-2 desktop:margin-bottom-0\">\n<h2 class=\"heading-22\">\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/p>\n<\/div>\n<div class=\"grid-col-12 desktop:grid-col-6\">\n<div class=\"desktop:grid-col display-flex flex-align-center desktop:flex-justify-end\">\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"hds-list-row hds-file-list-row\">\n<div class=\"hds-list-thumbnail hds-file-list-thumbnail\">\n<div class=\"hds-list-thumbnail-inner hds-file-list-thumbnail-inner hds-cover-wrapper\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"319\" height=\"319\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261009_lrg.jpg\/jcr:content\/renditions\/cq5dam.thumbnail.319.319.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A narrow river valley cuts through a forested plateau in northern Pennsylvania. The vegetation is green with some reddish areas.\" style=\"transform: scale(1.2);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" data-video-loop=\"\" \/><\/figure>\n<\/div>\n<\/div>\n<div class=\"hds-list-details\">\n<div class=\"hds-list-name hds-file-list-name\">\n<h2 class=\"heading-22\">October 9, 2026<\/h2>\n<\/p>\n<\/div>\n<div class=\"hds-list-meta\">\n<div class=\"hds-list-meta-item hds-list-date hds-file-list-date\">\n<p class=\"p-sm\">\n<\/div>\n<div class=\"hds-list-meta-item hds-file-list-filetype\">\n<p class=\"p-sm\">JPEG (15.28 MB)<\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"hds-list-cta hds-file-list-download\">\n\t\t\t\t\t<a aria-label=\"Download October 9, 2026\" href=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261009_lrg.jpg\" download rel=\"noopener\"><\/p>\n<p>\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<div class=\"hds-list-row hds-file-list-row\">\n<div class=\"hds-list-thumbnail hds-file-list-thumbnail\">\n<div class=\"hds-list-thumbnail-inner hds-file-list-thumbnail-inner hds-cover-wrapper\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"319\" height=\"319\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261025_lrg.jpg\/jcr:content\/renditions\/cq5dam.thumbnail.319.319.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A forested plateau displays red and gold foliage and is incised by several narrow, curving valleys.\" style=\"transform: scale(1.2);transform-origin: 50% 62%;object-position: 50% 62%;object-fit: cover\" loading=\"lazy\" data-video-loop=\"\" \/><\/figure>\n<\/div>\n<\/div>\n<div class=\"hds-list-details\">\n<div class=\"hds-list-name hds-file-list-name\">\n<h2 class=\"heading-22\">October 25, 2026<\/h2>\n<\/p>\n<\/div>\n<div class=\"hds-list-meta\">\n<div class=\"hds-list-meta-item hds-list-date hds-file-list-date\">\n<p class=\"p-sm\">\n<\/div>\n<div class=\"hds-list-meta-item hds-file-list-filetype\">\n<p class=\"p-sm\">JPEG (47.90 MB)<\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"hds-list-cta hds-file-list-download\">\n\t\t\t\t\t<a aria-label=\"Download October 25, 2026\" href=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/pennsylvania%E2%80%99s-grand-canyon\/jerseyshorepa_oli_20261025_lrg.jpg\" download rel=\"noopener\"><\/p>\n<p>\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>References &#038; Resources<\/strong><\/h2>\n<ul class=\"wp-block-list\">\n<li>Lumber Heritage Region, <a href=\"https:\/\/lumberheritage.org\/news-updates\/the-lumber-era-of-pine-creek-gorge\/\" rel=\"noopener\">The Lumber Era of Pine Creek Gorge<\/a>. Accessed October 30, 2026.<\/li>\n<li>NASA Earth Observatory (2026, October 26) <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/hunting-red-leaves-with-satellites\/\" rel=\"noopener\">Hunting Red Leaves With Satellites<\/a>. Accessed October 30, 2026.<\/li>\n<li>Pennsylvania Department of Conservation and Natural Resources (2026, October 22) <a href=\"https:\/\/www.pa.gov\/agencies\/dcnr\/newsroom\/2026-fall-foliage-oct-22\" rel=\"noopener\">2026 Fall Foliage Report: Week of October 22-28<\/a>. Accessed October 30, 2026.<\/li>\n<li>Pennsylvania Department of Conservation and Natural Resources, <a href=\"https:\/\/elibrary.dcnr.pa.gov\/GetDocument?docId=3816698&amp;DocName=FD16%20Tioga%20Pine%20Creek%20Gorge%20Natural%20Area%20factsheet.pdf\" rel=\"noopener\">Pine Creek Gorge Natural Area<\/a>. Accessed October 30, 2026.<\/li>\n<li>Pennsylvania Geological Survey (2016) <a href=\"https:\/\/elibrary.dcnr.pa.gov\/PDFProvider.ashx?action=PDFStream&amp;docID=1752600&amp;%23038;chksum=&amp;%23038;revision=0&amp;%23038;docName=89_GeoFeat_PineCreekGorge_Tioga-LycomingCos&amp;%23038;nativeExt=pdf\" rel=\"noopener\">Pine Creek Gorge (PA Grand Canyon), Tioga and Lycoming Counties<\/a>. Accessed October 30, 2026.<\/li>\n<\/ul>\n<div id=\"\" class=\"hds-content-lists-inner hds-module hds-module-full alignfull wp-block-nasa-blocks-content-lists\">\n<div id=\"content-list-c4962706-b662-4245-9ec5-7c0531921514\" class=\"hds-content-lists margin-y-3 padding-x-0 bg-spacesuit-white width-full maxw-full\" data-starting-query=\"{\" data-current-query=\"{\">\n<div class=\"grid-container grid-container-widescreen padding-x-3\">\n<div class=\"grid-row flex-align-start margin-bottom-3\">\n<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n<h2 class=\"section-heading-sm line-height-sm\">You may also be interested in:<\/h2>\n<p class=\"margin-top-0 margin-bottom-2 maxh-tablet\">Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"grid-row grid-container grid-container-block padding-0 margin-0 flex-justify-center\">\n<div class=\" grid-col-12\">\n<div class=\"grid-row grid-container grid-container-block padding-0\" style=\"display: block\">\n<div id=\"filter-tags\" class=\"grid-col-12 filter-tags-container\"><\/div>\n<\/p>\n<\/div>\n<div class=\"smd-orbit-loader\" role=\"status\" aria-hidden=\"true\">\n<div class=\"orbit-plane\"><span class=\"orbit-dot\"><\/span><\/div>\n<\/div>\n<div id=\"post-list-container\" class=\"hds-content-items hds-content-items-grid margin-top-2\" aria-live=\"polite\" data-rest-url=\"https:\/\/science.nasa.gov\/wp-json\/smd\/v1\/content-list\">\n<div class=\"hds-content-item content-list-item-post\">\n                    <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/pasterze-hangs-on-as-austrias-largest-glacier\/\" class=\"hds-content-item-thumbnail\" rel=\"noopener\"><\/p>\n<figure class=\"hds-media-background  content-list-thumbnail\"><img decoding=\"async\" loading=\"lazy\" width=\"300\" height=\"200\" data-no-id=\"true\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/pasterze-hangs-on-as-austria%E2%80%99s-largest-glacier\/pasterzeglacier_oli2_20260815_th.jpg?fit=clip&amp;crop=faces%2Cfocalpoint&amp;%23038;w=300&amp;%23038;h=200\"><\/figure>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/pasterze-hangs-on-as-austrias-largest-glacier\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Pasterze Hangs on as Austria\u2019s Largest Glacier<\/div>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    4 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">One narrowing icefall remains the linchpin for the Alpine glacier\u2014and it may not be long for this world.<\/p>\n<div 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width=\"300\" height=\"200\" data-no-id=\"true\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/michigan%E2%80%99s-les-cheneaux-islands\/cheneaux_oli2_20260723_th.jpg?fit=clip&amp;crop=faces%2Cfocalpoint&amp;%23038;w=300&amp;%23038;h=200\"><\/figure>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/michigans-les-cheneaux-islands\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Michigan\u2019s Les Cheneaux Islands<\/div>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    3 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">These glacial landforms jut into northern Lake Huron, surrounded by sheltered channels and coves frequented by fish and small watercraft.<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 margin-bottom-auto\"><span>Article<\/span><\/div>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"pagination-container\" class=\"pagination\">\n<nav class=\"hds-pagination hds-pagination--content-lists\" role=\"navigation\" aria-label=\"Pagination Navigation\" data-mid-size=\"2\" data-end-size=\"1\" data-max-pages=\"4\">\n<span aria-current=\"page\" class=\"page-numbers current\" aria-label=\"Current Page, Page 1\" data-page-number=\"1\"><br \/>\n<span>1<\/span><\/span><br \/>\n<a class=\"page-numbers\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/pennsylvanias-grand-canyon\/#\" aria-label=\"Goto Page 2\" data-page-number=\"2\"><br \/>\n<span>2<\/span><\/a><br \/>\n<a class=\"page-numbers\" href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/pennsylvanias-grand-canyon\/#\" aria-label=\"Goto Page 3\" data-page-number=\"3\"><br 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class=\"hds-media-background  \"><img decoding=\"async\" width=\"585\" height=\"425\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/about\/NASA-EO-Logo-mediumBlue2016-stacked-mark.png?w=585&amp;h=425&amp;%23038;fit=clip&amp;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-585x425 size-585x425\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/image-of-the-day\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Earth Observatory Image of the Day<\/span><\/p>\n<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">NASA&#8217;s Earth Observatory brings you the Earth, every day, with in-depth stories and stunning imagery.<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/iotd-banner.jpg?w=1536&amp;h=864&amp;%23038;fit=clip&amp;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x864 size-1536x864\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/earth\/explore\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Explore Earth Science<\/span><\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1536\" height=\"1536\" src=\"https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=1536&amp;h=1536&amp;%23038;fit=clip&amp;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/earth\/data\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Earth Science Data<\/span><\/p>\n<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Open access to NASA\u2019s archive of Earth science data<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1536\" height=\"768\" 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