Welcome to the Midvale Irrigation District!  Formed in 1921, Midvale manages a 400 mile-long system of canals and laterals known as the Riverton Unit of the Bureau of Reclamation, delivering irrigation water to over 73,000 acres of irrigable classed lands in Central Fremont County, Wyoming.  The District`s water supply is derived from the Wind River and its tributaries, a portion of which is stored annually in Bull Lake and Pilot Butte Reservoirs; facilities also managed by Midvale. 

The area is renowned for its hay production as is evidenced by 60 percent of the District`s irrigable lands producing premium hay that is annually shipped nation-wide. 

A 5 member Board of Commissioners provides direction and establishes the policies under which the District is operated in order to "Provide the maximum amount of available water to the District`s constituents at the lowest reasonable cost each year."