The Slot, Borrego Mountain Wash, and West Butte Loop

Parking is available at the trailhead for The Slot, which is typically the starting point for this loop. The trail is located within Anza-Borrego Desert State Park.

No, dogs are generally not allowed on trails within Anza-Borrego Desert State Park, including this loop. They are typically restricted to paved roads and campgrounds. Always check current park regulations before bringing pets.

The best time to hike this loop is during the cooler months, from late fall through spring (October to April). The trail has no shade outside of The Slot Canyon, making it unsuitable for summer hiking due to extreme heat.

Anza-Borrego Desert State Park generally does not charge an entrance fee for day use or hiking on its trails. However, fees may apply for camping or specific facilities. Always check the official park website for the most current information.

The full loop, which includes West Butte and Borrego Mountain Wash, is rated as moderate and involves boulder climbing, less obvious paths, and significant elevation changes, making it more challenging. A shorter, easier option is to hike just The Slot Canyon as an out-and-back, which is about 0.8-1 mile round trip and generally suitable for children, though it still involves tight squeezes and minor climbing.

The terrain is diverse. The Slot Canyon features incredibly narrow siltstone passages, sand, loose rocks, and dirt. Ascending West Butte involves an initial path that becomes less distinct, requiring navigation over small peaks. The descent can include larger boulders and some climbing. Borrego Mountain Wash is typically a sandy, gravelly streambed.

Key highlights include squeezing through the unique siltstone formations of The Slot Canyon, navigating the sandy Borrego Mountain Wash, and reaching the summit of West Butte, Borrego Mountain for panoramic desert views. You'll also encounter a Nice Dryfall and potentially wind cave formations.

The full loop, which can range from 3.5 to 6.5 miles depending on the exact route taken, typically takes around 4 hours to complete. This duration accounts for the varied terrain and navigation challenges.

Given the desert environment and lack of shade, essential items include plenty of water (more than you think you'll need), sun protection (hat, sunscreen, sunglasses), sturdy hiking shoes with good grip for sand and rocks, and a map or GPS device as some sections have less obvious paths. Snacks and a first-aid kit are also recommended.

Yes, the route incorporates sections of several official trails. You will hike along parts of the West Butte Trail, Borrego Mountain Wash, and The Slot trail itself.

As a desert trail, you might spot various desert flora, especially after winter rains when ocotillos and other plants can flourish. Wildlife sightings could include lizards, various bird species, and possibly desert hares or coyotes, particularly during cooler parts of the day.