Pennsylvania’s Grand Canyon
Earth Observatory Science Earth Observatory Pennsylvania’s Grand Canyon Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technology Snow & Ice Water More Content Collections Global Maps World of Change Articles Earth Matters Blog Blue Marble: Next Generation EO Kids Mission: Biomes About About Us Subscribe 🛜 RSS Contact Us Search October 25, 2026 NASA Earth Observatory/Michala Garrison North-central Pennsylvania is canyon country with an Appalachian flair. Pine Creek Gorge reaches depths of about 1,500 feet (460 meters) along its gently curving path through the forests of the Allegheny Plateau . Instead of the steep rock walls characteristic of canyons in the desert Southwest, lushly vegetated slopes outline the dramatic topography. In autumn, greens give way to a palette of reds...
