Absaroka Range  Absaroka Range, Absaroka Range, Rocky Mountains,
southern Montana.© Sue Smith/Shutterstock.com mountain segment
of the northern Rocky Mountains, in northwestern Wyoming and
southern Montana, U.S. Extending in a northwest-southeast
direction, the range is 170 miles (270 km) long and 50 miles
wide. A large plateau, the result of volcanic action, was
uplifted in the area, and stream and glacial erosion have
produced spectacular features. Eight summits exceed 12,000 feet
(3,700 m), including Francs Peak (13,140 feet), the highest
point. The range is a source for headstreams of the Bighorn
River and embraces portions of the Gallatin, Shoshone, and
Custer national forests and the extreme northeastern part of
Yellowstone National Park. Granite Peak (12,799 feet), the
highest point in Montana, is in the Beartooth Range, a
northeastern spur of the Absarokas.