2021 Map of Lewis Canyon

About this map

Yellowstone National Park and the John D Rockefeller Jr Memorial Parkway converge in this high-altitude landscape defined by hydrothermal activity and deep river incisions. Geothermal features like Phantom Fumarole and the Crawfish Creek Hot Springs are mapped alongside the dramatic drop of Lewis Canyon. The eastern portion of the sheet is dominated by the Snake River Headwaters Wild and Scenic River, where the South Entrance Road parallels the water, providing the primary access corridor into the park system. Backcountry routes such as the South Boundary Trail: Grassy Lake-South Entrance Trl and the Pitchstone Plateau Trl offer a network of trails through the Teton National Forest, connecting isolated water bodies like Tanager Lake and Forest Lake across the Pitchstone Plateau.