By Laura Van Dusen
County: Park
Founded: 1873
Elevation: 10,578 ft.
Population: 270 (2010)
At just over two miles high, Alma is the highest incorporated town in North America. It was a gold mecca in 1859, later silver boomed, and, more recently, prospecting around Alma has focused on spectacular rhodochrosite crystals found at the Sweet Home Mine.