About Missouri River Historical Development, Inc. (MRHD)
MRHD is the non-profit organization that holds the license for riverboat gaming in Woodbury County. Its funding is generated from an agreement between MRHD and Argosy Casino Sioux City which allows Argosy to run a gaming operation in Woodbury County using MRHD's gaming license.
MRHD was formed in 1989 when Woodbury County voters approved a referendum that sanctioned riverboat gaming. A second referendum passed by 75 percent in 2002. Since 1994, MRHD has distributed more than $17 million to Woodbury County non-profits and governmental bodies.
MRHD built the Sioux City Lewis & Clark Interpretive Center and the adjoining Betty Strong Encounter Center at a cost of $7.6 million. MRHD sustains the entire riverfront cultural complex which is free to all visitors.