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Custer County topographic maps
Click on a map to view its topography, its elevation and its terrain.
Yellowstone River
United States > Montana > Custer County
The mainstem of the Yellowstone River is more than 700 miles (1,100 km) long. At the headwaters, elevations exceed 12,800 feet (3,900 m) above sea level and descends to 1,850 feet (560 m) at the confluence with the Missouri River in far western North Dakota. The watershed spans 34,167 square miles (88,490…
Average elevation: 720 m