Construction Construction started in 1905 on Pathfinder Dam and the Interstate Canal. By 1915, work on the Interstate Canal and Reservoirs was completed and work had started on Fort Laramie Canal. Lingle Powerplant and the Northport Canal system were started in 1918. All canal construction was completed by 1925. About 335,000 acres of sagebrush and rangeland have been transformed into productive farmland.
Agriculture is the basic income-producing activity.
From the first irrigation, the project has produced alfalfa, corn, potatoes, and sugar beets steadily and abundantly. Dry beans also have become an important crop. Recreation Guernsey Reservoir has developed foot trails and campgrounds. A fine museum, also built by the CCC, houses exhibits pertaining to the area. The dam, powerplant, and all CCC structures are included in the National Register of Historic Places.