High Plateaus
Describes the geographic and geologic setting of the high plateaus and associated landforms.
Internal
Defines the main high plateau and associated high-elevation landforms that are central to the region.
Yellowstone Caldera
A massive volcanic caldera home to geysers, hot springs, and the world's first national park.
Canadian Rockies
A dramatic mountain range featuring some of North America's highest peaks, expansive glaciers, and clear alpine lakes.
Pleistocene Plash Plateau
A high-level plateau formed by volcanic deposits and sedimentary layers, often serving as a transit corridor and erosional remnant.
Bordering
Lists major landforms or regions that directly border the main high plateau.
Columbia Plateau
A broad, arid region carved by Columbia River and layered with ancient basalt flows, transitioning from high desert to steppe.
Coxcomb Mountains
A rugged range dissected by steep-sided canyons and topped with windswept ridges, serving as a natural boundary and habitat corridor.
Grand Fish Lake
A large, high-elevation lake known for fishing, migratory birds, and surrounding marshes and upland sage steppe.