Town view of Sunset, Colorado, taken Aug. 1st, 1886 by Joseph Sturtevant. Altitude noted to be at 8000ft. In 1876, this camp was known as Pennsylvania (or simply Penn) Gulch. On October 3, 1883, the Herald reported that the post office name was changed to Sunset. It took about a year for the new name to catch on. A few historic cabins remain in this location, ten miles up Four Mile Canyon.