San Ysidro Mountain Wilderness Study Area is a rugged and remote wilderness study area located within California's Anza-Borrego Desert State Park. This area is characterized by its challenging desert terrain, steep granite slopes, and remote canyons, forming part of the expansive Peninsular Ranges. The landscape features dramatic escarpments and offers expansive views over the surrounding desert, making it suitable for several sports like hiking.
The San Ysidro Mountain Wilderness Study…
17
Routes
4.5
(38)
Average rating
437
People visited

3.0
(1)
16
hikers
2.47km
00:46
140m
Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

5
hikers
7.59km
02:11
290m
30m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

3
hikers
7.96km
02:40
620m
40m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

5.0
(1)
3
hikers
6.50km
02:01
220m
260m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The San Ysidro Mountain Wilderness Study Area primarily offers hiking opportunities. Its rugged and remote desert terrain, steep granite slopes, and remote canyons provide challenging experiences for outdoor enthusiasts.
Popular hiking routes include a 9.2-mile (14.8 km) loop from Warner Springs and an 8.4-mile (13.6 km) loop to Wilson Peak Summit. Another option is the 4.7-mile (7.6 km) Pacific Crest Trail section to Montezuma Valley Overlook. For more details, explore the Hiking in San Ysidro Mountain Wilderness Study Area guide.
While many trails are rugged, some routes may be suitable for families depending on experience. The area's challenging desert trails often require good navigation skills. A dedicated guide for Family-friendly hikes in San Ysidro Mountain Wilderness Study Area is available.
Trails in the San Ysidro Mountain Wilderness Study Area range from moderate to difficult. Many routes feature significant elevation gains and rugged terrain, requiring good physical condition and navigation skills. An ascent to San Ysidro Mountain from the desert floor can involve a 4,500-foot (1,370 m) climb in under 3 miles (4.8 km).
The area features rugged Peninsular Ranges, prominent granite slabs, and diverse desert flora like barrel cacti. Hikers can experience expansive desert views, dramatic escarpments, and potentially spot wildlife such as banded rock lizards and desert bighorn sheep.
Trails offer expansive views over the surrounding desert landscape, including Borrego Springs, the Salton Sea, and distant peaks in San Diego and Mexico. Panoramic views of the Anza-Borrego Desert are common from higher elevations.
More than 1,000 visitors have shared their experiences in the San Ysidro Mountain Wilderness Study Area on komoot. The routes have an average rating of 4.48 out of 5 stars, based on over 80 ratings.
Yes, komoot offers guides such as Hiking in San Ysidro Mountain Wilderness Study Area and Family-friendly hikes in San Ysidro Mountain Wilderness Study Area. These guides provide detailed information on various routes and activities.
The San Ysidro Mountain Wilderness Study Area is managed by the Bureau of Land Management (BLM) and is located within Anza-Borrego Desert State Park. Information regarding the area can often be found through Anza-Borrego Desert State Park resources.
For information related to the broader management of Wilderness Study Areas, the Bureau of Land Management (BLM) can be contacted. Their official website is https://www.blm.gov/office/california-state-office, and their phone number is +1-916-978-4600.
Hikes in the area can involve significant elevation gains due to the rugged terrain. For example, the hiking loop from Warner Springs has an elevation gain of 1,962 feet (598 m), and some ascents can exceed 4,500 feet (1,370 m).
Yes, loop trails are available, such as the 9.2-mile (14.8 km) hiking loop from Warner Springs. Another option is the 8.4-mile (13.6 km) Wilson Peak Summit loop from Wilson Trailhead. The Barrel Spring – Great campspots & view loop is a longer 13.0-mile (21.0 km) option.

