Trail Overview
Los Pinos Mountain Loop offers a scenic and moderately challenging driving experience for high-clearance stock 4x4 vehicles, delivering sweeping vistas of the Cleveland National Forest and a historic mountaintop fire lookout. Spanning approximately 19 miles with nearly 2,900 feet of elevation change, this loop reaches a maximum elevation of 4,666 feet near the summit of Los Pinos Mountain. The journey begins at the Four Corners trailhead area, initially climbing along a paved access road where ATVs are prohibited. As the route transitions to dirt and heads south around the Corral Canyon OHV Area, drivers will navigate a mix of easy fire roads and narrower, rutted sections that demand careful tire placement but remain accessible to stock SUVs with decent clearance.
While much of the loop is straightforward, the western and southern stretches feature steep, brushy descents and ruts that warrant its moderate technical rating of 4. Drivers can expect stunning, panoramic views overlooking Barrett Lake, Bronco Peak, and the Morena Reservoir as the trail snakes through chaparral-covered hillsides. The route is accessible year-round, though summer temperatures can be extreme, and winter rains may occasionally wash out sections of the dirt track. Dispersed camping and established campgrounds in the surrounding Cleveland National Forest require an Adventure Pass, making it easy to turn this scenic loop into a multi-day offroad adventure.
Difficulty
Moderate: Mostly easy except for the section between Waypoints 02 and 04. This portion is narrow, steep, brushy and rutted in spots, but suitable for high clearance stock 4x4 SUVs.
History
The loop passes the Los Pinos Mountain fire lookout tower. 'Los Pinos' is Spanish for 'The Pines,' referencing the surrounding trees visible from the summit. Originally constructed in the 1920s and replaced in the 1960s, it remains one of the few active, full-time manned Forest Service fire lookout towers in California.
Access Description
The first portion of the loop leading up to the fire lookout tower is paved and closed to ATVs. The rest of the trail is dirt and open to green-sticker vehicles. A United States Forest Service Adventure Pass or Interagency Pass is required for parking and camping within the Cleveland National Forest. Dispersed camping and established campsites are available in the Corral Canyon OHV Area.