Pinneo is an extinct town in Washington County, in the U.S. state of Colorado. The GNIS classifies it as a populated place. [1]
A post office called Pinneo was established in 1883, and remained in operation until 1931. [2] The community was named after B. F. Pinneo, a local law enforcement agent. [3]
40°12′34″N 103°26′19″W / 40.20944°N 103.43861°W