What's the best time of year to climb in Rimforest?

Rimforest sits at mountain elevation in the San Bernardinos, which means summer is generally the most reliable window — temperatures stay manageable compared to the low desert. Spring and fall can work on clear days, but snow and ice are real possibilities from late fall through early spring, and afternoon thunderstorms are common in July and August.

What gear should I bring?

Based on the bolted-route character suggested by listings like She Gave Him Blue Bolts and Crimp-Tick Combination, a standard sport rack — quickdraws, a 60-meter rope, and a belay device — is the baseline. Bring approach shoes for any trail access to Temple Rock or Sphinx Rock, and layer up since mountain temperatures drop quickly once you're in the shade.

How crowded does it get, and what time of day is best to arrive?

Rimforest doesn't have the same foot traffic as Joshua Tree or Tahquitz, so weekday visits are generally uncrowded. On weekends in summer, arriving early — before 9 a.m. — is smart if you want first pick of routes at Temple Rock or Sphinx Rock before other parties set up.

California · Rock Climbing

Rock Climbing in Rimforest, California

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Rock Climbing · 27 spots

Rimforest sits at elevation in the San Bernardino Mountains, and the rock climbing here reflects that setting: granite and gneiss formations tucked into the pines, with named areas like Temple Rock and Sphinx Rock anchoring a scene that has at least 27 documented routes. The route names alone tell you something about the local culture — you've got everything from the straightforward Old School to the elaborately titled Mukat and the Fiery Arrowhead in the Sky and Tricky Horus of the Twin Horizons, which suggests a community of climbers who've been putting up lines here long enough to develop some personality about it. The climbing skews sport, with bolted routes like She Gave Him Blue Bolts and Crimp-Tick Combination pointing toward face climbing on crimpy holds rather than crack systems. Routes like Heart Breaker Machine and NeuroToxin suggest the harder end of the grade spectrum exists here, while names like Sunshine Flurries and Sole Food imply more approachable options for intermediate climbers. This isn't a destination that shows up in every guidebook, which means less crowding than Joshua Tree on a holiday weekend — but it also means you'll want to do your homework before showing up expecting fixed anchors and chalk-marked starts on every line.

Frequently asked questions

What are the main climbing areas in Rimforest?

The two identified climbing areas in the Rimforest listings are Temple Rock and Sphinx Rock. Both sit within the broader San Bernardino Mountains environment, so expect approach trails through forested terrain rather than open desert-style walk-ups.

What skill level do I need to climb here?

The route names suggest a range, but several listings like Heart Breaker Machine, NeuroToxin, and HemoToxin imply harder grades are well represented. Intermediate climbers will find options like Sunshine Flurries and Sole Food, but this area probably rewards climbers who are already comfortable leading sport routes outdoors rather than those just transitioning from the gym.