The story of the Gilpin County and the Gold Tram starts in April of 1859 when John H Gregory started up Clear Creek from Golden searching for gold. Gold flakes were being found in the creek, so the question was, where was the gold coming from. Working up the creek and following the north branch of Clear Creek at what is now know as Forks (for years, a station and restaurant, now a traffic light), Gregory found the richest gold dust in what is now called Gregory Gulch above Black Hawk. The Gregory Lode had been found. For he full story including maps, photos, you name it:
The GR is for Gregory Gulch.