Grizzly Peak is a prominent summit in Colorado’s Sawatch Range on the Continental Divide near Independence Pass. At 13,995 feet, it marks the boundary between San Isabel and White River national forests and holds a singular distinction as the highest summit in the United States still below 14,000 feet, making it the nation’s highest thirteener. Earlier surveys briefly placed it among the fourteeners, but later, more precise measurement lowered its official elevation slightly. The mountain is formed from Oligocene-age andesite lava flows and breccias, reflecting the volcanic history of this part of the Rockies, and it was once also known as Grizzly Mountain.