Yellowstone’s Grand Canyon Ron Mayhew 7 years ago The Grand Canyon of Yellowstone. At more than 1000 feet deep the Yellowstone River continues to cut its way through the ancient bedrock of Yellowstone. The most breathtaking sight in Yellowstone and inspiration for many of Thomas Moran’s paintings. Share this: Share on Facebook (Opens in new window) Facebook Share on Tumblr (Opens in new window) Tumblr Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email Share on WhatsApp (Opens in new window) WhatsApp Share on Pinterest (Opens in new window) Pinterest Print (Opens in new window) Print Share on Bluesky (Opens in new window) Bluesky Yellowstone River | Yellowstone NPDateApril 29, 2020Old Faithful | Wordless WednesdayDateApril 29, 2025Impressions of Black-eyed SusansDateAugust 6, 2023