Ghost Towns in San Juan County, Colorado

San Juan County, Colorado, is home to 10 documented ghost towns — a concentrated dose of boom-and-bust history in a single county. From gold-rush camps to railroad sidings, the ghost towns of the American West trace the boom-and-bust cycles of mining frontiers. The names to know include Animas Forks, Eureka, Arastra, Chattanooga, Gladstone.

Where conditions are verified, expect 1 partial ruins and 1 foundations only sites. 2 towns are known to be publicly accessible — for the rest, verify land ownership before you go. Every town below gets its own full guide — with maps, visitor notes, and FAQs.