Greeting Card from Sheridan, Wyoming. ca. 1941, Sheridan, Wyoming, USA, Sheridan, Wyoming is a great little city, the metropolis of northeast Wyoming. To the west lie the secluded lakes and rugged peaks of the Bighorn Mountains. To the east great prairies stretching out past Devils Tower to the Black Hills. To the north lies the mighty canon of the Bighorn River, Custer Battlefield and other features while to the south are giant oil fields.