Fort Sidney is a historic fort located in Sidney, Nebraska, United States. The 37th Infantry Regiment established "Sidney Station" at a point midway between the Platte Rivers, where the modern community of Sidney, Nebraska, now stands. Initially the installation was a block house on a bluff with soldiers residing in tents nearby. That Spring, Fort Sedgewick, Colorado, was abandoned and the wooden buildings moved by mule train to a location beneath the bluffs and on the Lodgepole creek.