Category archives for Powder River

Yellowstone River (and Tongue River)-Powder River drainage divide area landform origins, eastern Montana, USA

A geomorphic history based on topographic map evidence Abstract: The Yellowstone River (and Tongue River)-Powder River drainage divide area is located in eastern Montana, USA. Although detailed topographic maps of the Yellowstone River (and Tongue River)-Powder River drainage divide area have been available for more than fifty years detailed map evidence has not previously been […]