Granite Canyon is located in Grand Teton National Park, in the U. S. state of Wyoming. The canyon was formed by glaciers which retreated at the end of the last glacial maximum approximately 15,000 years ago, leaving behind a U-shaped valley.
Granite Canyon is situated in Grand Teton National Park, Wyoming. The canyon's formation occurred when glaciers melted around 15,000 years ago, creating a U-shaped valley similar to other glacially carved features.