Milk, river, 729 mi (1,173 km) long, rising in the Rocky Mts., NW Mont. It flows N into Alberta, Canada, then in long curves eastward, S into Montana again, and generally SE to the Missouri River, entering just below Fort Peck Dam. The Milk River reclamation project (est. 1911) irrigates c.134,000 acres (54,230 hectares). The largest of several dams is the Fresno Dam (completed 1939). Malta, Chinook, Glasgow, and Harlem, Mont., are in the project area.
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