Some of Reclamation's earliest projects were built in Montana. Work began on the Lower Yellowstone Project in 1905 just three years after the agency was created. Most of the Montana development occurred under the Pick-Sloan Missouri Basin Program, including the large Yellowtail and Canyon Ferry units. Both provide considerable storage for irrigation and power generation and are popular recreation areas.
Principal crops are sugar beets, hay, corn, wheat and barley.
Over 1 million visitor days are spent at Reclamation facilities in Montana each year.