Calcite Mine

Total Miles


351.98 ft


1 Hours

Technical Rating



Best Time

Fall, Winter, Spring

Trail Overview

Short trip, but worth it for experienced riders. Must have a street-legal vehicle in the state park. Climb up to a WWII calcite mine and incredible views of Anza-Borrego State Park and the Salton Sea. Stay for awhile and explore numerous hiking trails and slot canyons.


Difficult: Steep, narrow and tippy with large ruts and washouts. Impassable when wet. Stay out if rain is expected. Modified vehicles are best, but aggressive stock vehicles can do it with experienced driver. Extreme flash flood danger hiking in the slot canyons.


Calcite Mine contained a high-quality colorless calcite that was used to make Norden bombsights during WWII. It was mined by digging trenches following calcite seams. You can see bits of the calcite when it reflects the sun. It is illegal to remove any plant, animal or mineral from the park.

Technical Rating


Access Description

Located on the north side of Highway S22 between Borrego Springs and Salton City. From Highway 86 in Salton City, drive 8.3 miles west on S22. Trail entrance is 0.65 miles west of large microwave tower on S22.