Cottonwood Canyon to Red Dome spans a 16.6-mile out-and-back trail that starts in the desert near the I-10 Freeway and ascends into the mountains to reach Red Dome and the Whitewater River. Following the Pacific Crest Trail (PCT) through a significant portion of the Sand to Snow National Monument, this journey transitions from the stark beauty of the desert, past towering windmills, to the refreshing oasis of the Whitewater Preserve, cradled by the Whitewater River's lush riparian habitat. The route is characterized by scenic vistas, diverse biodiversity, and well-maintained singletrack.
The hike begins amid a dramatic landscape, with giant windmills set against the backdrop of southern California’s iconic peaks, San Gorgonio Mountain (11,499’) and San Jacinto Peak (10,839’). Offering expansive desert views, the trail weaves through the Sand to Snow National Monument, culminating near Red Dome and the Whitewater River where the desert melds into a vibrant riparian zone—a stark contrast and a welcome relief for hikers.
Encapsulating Southern California's varied landscapes, this route affords encounters with a broad spectrum of flora and fauna suited to its diverse habitats. The Sand to Snow National Monument is both an ecological gem and a cultural haven, recognized for its biodiversity with over 240 bird species and 12 threatened and endangered wildlife species, and safeguarding numerous sacred American Indian petroglyphs and archaeological sites.
WHEN TO VISIT
Optimal during fall and spring to avoid extreme temperatures.
CAMPING AND PERMITS
WATER
It is essential to carry sufficient water and sun protection due to the exposed terrain and potential for high temperatures. All water collected in the backcountry must be treated.
CONSIDERATIONS
Wildlife: Secure food to avoid attracting local wildlife.
Weather: Pack for variable conditions, including layers and rain gear.
Navigation: Use a detailed map and compass or GPS for navigation, as trail signage may be sparse.
ADDITIONAL INFORMATION
Whitewater Preserve: For details on access, visitor guidelines, and the preserve's resources, visit Whitewater Preserve.
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