Topographic map of the Yellowstone National Park, Wyoming, Montana, Idaho / Geological Survey (U.S.)

Topographic map of the Yellowstone National Park Wyoming, Montana, Idaho / Geological Survey (U.S.)

Surficial geologic map of the Old Faithful quadrangle, Yellowstone National Park, Wyoming / Waldrop

Surficial geologic map of the Old Faithful quadrangle, Yellowstone National Park, Wyoming Waldrop

Geologic map of the Canyon Village quadrangle, Yellowstone National Park, Wyoming Christiansen

Geologic map of the Old Faithful quadrangle, Yellowstone National Park, Wyoming Christiansen

Geologic map of the West Thumb quadrangle, Yellowstone National Park, Wyoming Christiansen, Robert

Surficial geologic map of the Canyon Village quadrangle, Yellowstone National Park, Wyoming

Surficial geologic map of the Madison Junction quadrangle, Yellowstone National Park, Wyoming /

Surficial geologic map of the Frank Island quadrangle, Yellowstone National Park, Wyoming Richmond

Surficial geologic map of the West Thumb quadrangle, Yellowstone National Park, Wyoming Richmond

Surficial geologic map of the Canyon Village quadrangle, Yellowstone National Park, Wyoming /