Dietrich River

The Dietrich River is a 35 miles (56 km) long braided river in the Yukon-Koyukuk Census Area of Alaska. The headwaters originate in the Brooks Range. It flows south to join the Bettles River and to form the Middle Fork Koyukuk River.^[1]

Dietrich River
View from Dalton Highway to Dietrich River right above the mouth of Nutirwik Creek
Location in Alaska
Physical characteristics
Source
• coordinates	68.1222222°N 149.7052778°W / 68.1222222; -149.7052778
Mouth
• location	Bettles River and Middle Fork Koyukuk River
• coordinates	67.6425000°N 149.7419444°W / 67.6425000; -149.7419444
• elevation	433 meters (1,421 ft)
Length	35 miles (56 km)
Basin features
River system	Yukon River

The river forms a broad floodplain. Common species of fish found in the river include Arctic grayling, burbot, Dolly Varden trout, and whitefish.^[2]

The Dalton Highway ascends the Dietrich River valley and follows the river for 25 miles.^[2]