"Gunnison National Forest (Colo.)" . . "Colorado" . . "[Gunnison National Forest, Colo., and other adjacent Forest Service areas] : 7.5 minute series (topographic)"@en . . . . . "Topographic maps"@en . . "Gunnison National Forest, 7.5 minute series (topographic)"@en . "Maps"@en . . . . . . . "Bull Mountain quadrangle, Colorado--Gunnison Co"@en . "Electric Mountain quadrangle, Colorado"@en . . .