CAJON
Cucamonga Peak  |  Cucamonga Canyon  |  Mormon Rocks Interpretive
Chaparral Neighborhood

ARROWHEAD
Little Green Valley  |  Children's Forest Trail of the Phoenix
 Children's Forest Exploration Trail  |  Seeley Creek / Heart Rock 
Hot Springs / Goat Trail  |  Crab Creek / Fisherman's Camp  |  Hawes Peak (west)
 Holcomb Crossing (east)  |  Heaps Peak Arboretum
 Sequoia Splinters Cabin / Pacific Crest Trail  |  Metate / Rock  |  Camp Pinnacles

BIG BEAR
Alpine Pedal Path  |  Glory Ridge  |  Castle Rock  |  Champion Lodgepole  |  Pineknot 
Sugarloaf National Recreation Trail  |  
Woodland  |  Grays Peak  |  Cougar Crest

SAN GORGONIO
Aspen Grove Trail  |  Fish Creek Trail  |  Lost Creek Trail  |  Big Falls
 Forsee Creek Trail  |  Ponderosa Vista Nature Trail  |  Santa Ana River Trail
  Whispering Pines  |  Rio Monte  |  Jenks Lake  |  Momyer Creek
North Fork, Whitewater River  |  Vivian Creek  |  San Bernardino Peak  |  South Fork
Alder Creek  |  Government Canyon  |  Wilshire Peak  |  Oak Glen Divide

SAN JACINTO
Black Mountain 2E35  |  Fuller Ridge  |  Deer Springs Trail to Suicide Rock 3E17 to 3E33
Marion Mountain 2E14  |  Seven Pines  |  Pinyon 5E03  |  Humber Park  
Devils Slide Trail   |  Ernie Maxwell Scenic Trail  |  Palm Canyon  |  Sawmill 
South Fork
 
|  Ramona Trail  |  Fobes Trail  |  Cahuilla Mountain Trail 
 Webster  |  Cedar Spring Trail  |   Cactus Spring Trail
 South Ridge Spitler Peak  |  Climbers Trail   |  Palm Springs Aerial Tramway

Lost Creek Trail

The Lost Creek trailhead is across Highway 38 from the South Fork Campground. Beginning at the parking lot (6,320'), it crosses under the bridge. The beginning of the Lost Creek Trail follows the Santa Ana River Trail. After approximately 0.5 mile, the Lost Creek Trail splits from the Santa Ana River trail and heads up an old jeep road for about 1 mile before heading off (south/west) on a trail towards Grinnell Ridge Camp (no water-8,500'). From the Grinnell Ridge Camp, the trail descends into South Fork Meadows and meets with the South Fork Trail. This trail is one of the most underused and offers solitude and good views north to Santa Ana Canyon and Sugarloaf Peak.