Long Branch Baldy is an 11,980-foot mountain in the Cochetopa Hills of Colorado’s San Juan Mountains, standing on the Continental Divide in Saguache County between Gunnison and Rio Grande national forests. Its geology reflects the San Juan volcanic field, with bedrock made chiefly of andesite from the Conejos Formation, plus small dacite remnants from the Bonanza eruptions near the summit and north slope. Later glaciation carved cirques into its northeast and east sides, leaving tarns and deposits behind. With a subarctic climate of snowy winters and cool summers, the mountain is also a hiking destination, reached by routes from the Long Branch and Razor Creek trailheads.