The lesser-appreciated mountain by the many hikers that strive for San Gorgonio's summit every year, Jepson in fact has a multitude of interesting couloirs on its north and eastern flanks. In addition to the couloirs on the north side
, those on the east side of the summit running toward the Jepson / San Gorgonio saddle offer additional climbing and skiing.
Follow the directions on the main page to South Fork Trailhead:
From I-10 in Redlands take the University exit north to Lugonia Street (route 38). Follow route 38 east passing the Forest Falls turn-off and the small town of Angeles Oaks. About 6 miles past Angeles Oaks turn right on Jenks Lake Road. Go about 3 miles to the large hiker/trailhead parking on your left.
Make sure to bring your adventure pass ($5/day, $30/year, or valid NPS annual pass). There can be snow down to this road and well past it in the winter, be prepared.
Follow the Dry Lake trail as best you can up to the lake. In the winter, the trail actually does not take the best route, so use your common sense.
Approaching the bowl between Gorgonio and Jepson
If there is a lot of snow, the best choice is probably to stay in the well-treed gully wash leading up the South Fork to Dry Lake rather than turning east (left) uphill to follow the switchbacks.
When there is partial snow (this route is best in the spring, I think!) the switchbacks can be quite difficult because the snow patches in the trees on the switchbacks are steep and icy from the tree shade.
Once at Dry Lake, head up the wash to the west of the lake and follow it until the bowl between San Gorgonio's west slopes and Jepson's east slopes. There are good opportunities to rest and eat in the trees before heading into more exposed areas.
Approaching the top of one of the middle couloirs. Yum, curdly.
From the bowl, you have a whole selection of routes to choose from, including those going off to climber's left up San Gorgonio itself.
The steepest couloirs are obviously more left toward Jepson's summit, and those get quite rocky and nasty in the spring. The most gentle couloir (30 degrees-ish) is the one right at the end of the bowl - leading up toward the saddle itself. This retains its snow well into the spring.
The summit ridge at the top of the couloirs in early spring
The couloirs get progressively steeper toward the left - it is easy to see once you get there what is climbable and what is not, and as the easiest couloir keeps its snow the longest you always have a 'bail out' way up.
So basically, pick your coloir, and climb it!
When you get to the top, it is a simple and beautiful ridge walk to the main summit.
These couloirs are on the wind loaded side of the ridge, so be prepared with your avalanche smarts, partners, and prepardness. Unfortunately, there isn't an avalanche bulletin for Southern California, but you can try calling ski patrol at Mount Baldy to see what they say about conditions. Also, be sure to check the bulletin board at sgwa.org
, sometimes experienced people post there with snow conditions.
Otherwise, a simple assortment of snow gear like axe, crampons, helmet (esp in those rocky couloirs) and good timing will do fine.
External LinksExternal trip report
in May conditions