Note the zig-zag road that leads up to an old mine on the side of Trinchera Peak. Note the bowl-shaped basin of the cirque and the lake at the center. This cirque was formed by a small glacier that occupied the basin. Blanca Peak is visible on the right horizon, and the San Luis Valley can be seen in the left distance. Note the glacial landforms with a small lake dammed behind a moraine.
Mountain sheep are common in the alpine zone of the Culebra Range.