At 3,500 ft (1,100 m) elevation, it sits on 1,063 acres (4 km2) of land 50 miles (80 km) east of San Diego, near the unincorporated community of Campo.

The 1,063-acre (4 km2) site has a firing range, an administration building, barracks, and a 5,000-metre (16,000 ft) length mountain endurance training course.

The property was reconfigured as a training center and named for Master-at-Arms Second Class Petty Officer Michael A. Monsoor, a member of SEAL Team 3, who died during the Iraq War in 2006.

The La Posta Navy Mountain Warfare Training Facility plays a critical role in military training because the area's land and terrain closely resemble the environments found in Korea and parts of Iraq and Afghanistan.

Camp Michael Monsoor, like San Clemente Island, is one of the few places that allow special forces to train in a real life environment with limited encroachment problems.