The Calcite Mine trailhead is located on the north side of Hwy S-22 about 20 miles east of Borrego Springs. It is near the microwave tower and is in Anza Borrego Desert State Park near the boundry of Ocotillo Wells OHV Park. The sign for the trail is somewhat obscured by a nearby hill so is easy to miss. Across the road is a sign for the historic Truckhaven Trail.
The Calcite Mine Trail is rated as a 2 but may require some spotting to negotiate some of the rutted climbs. The mine is located about 1/2 way up the mountain to the north and has Spectacular views of the desert to the west and south.