Agate

Agate is a unincorporated group and U.S. Mail station in Elbert County, Colorado, United States. The town of Gebhard was set up by the Union Pacific Railroad around 1876. The Gebhard Post Office opened on April 8, 1881. The name of the town was changed to Agate on April 24, 1882. Despite the fact that "Gebhard" was built up by the UPRR, the town of Agate existed, by that name, as a territory utilized by nearby farmers before the development of the railroad.

The town's name most presumably originates from an "A-gate" – a wooden entryway with an "A"- molded cross-prop, yet is now and again asserted to be named for agate found in the zone.