The Fremont, Elkhorn and Missouri Valley Railroad (FE&MV), sometimes called "the Elkhorn," was a railroad established in 1869 in the state of Nebraska in the Midwestern United States.
The company constructed several lines in Nebraska, including a long east-west route from Omaha across northern Nebraska to Chadron, trackage that later became known as the "Cowboy Line."
Beginning in the 1880s the FE&MV expanded north and west from Chadron, building a line along the eastern edge of the Black Hills to Rapid City and Belle Fourche, South Dakota, as well as a line westward to Casper, Wyoming.
Charles Henry King, grandfather of President Gerald Ford, was to make his fortune establishing banks and freighting services in towns he helped found along the line including Chadron and Casper. Ford's father Leslie Lynch King, Sr. was born in Chadron during this time.
The larger Chicago and North Western Railway (C&NW) acquired control of the FE&MV in the late 19th century, and in 1903, the FE&MV was formally absorbed into the C&NW. The FE&MV's passenger depot in Douglas, Wyoming is listed in the National Register of Historic Places.
The trackage through Rapid City is operated by the Rapid City, Pierre and Eastern Railroad.