Fort Lyon is an unincorporated community and U.S. Post Office in Bent County, Colorado, United States.

[1] A post office called Fort Lyon was established in 1862.

[2] The community was named after Nathaniel Lyon, an officer in the American Civil War.

[4] The ghost town of Sheridan, in Logan County, Kansas, became a railhead for westbound freight to the Santa Fe Trail on a 120-mile (190 km) wagon road to the area.

[5] Some German prisoners of war were buried at Fort Lyon and built furniture and worked on local roads.