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White Mountain #2


Ventura County, about 12 miles south of Gorman, 85 miles from Los Angeles


Auto Club: Ventura County
Forest Service: Los Padres National Forest
Topo: Black Mtn 7½, Cobblestone Mtn 7½, Alamo Mountain

Nearby Peaks: Alamo Mountain, McDonald Peak, Sewart Mountain, Snowy Peak, Black Mountain #2, Cobblestone Mountain

Adventure Pass Required

Distance: 14 miles r.t. on road and trail, trail and steep loose cross-country
Gain: 2,200' plus 2,400' gain on the return
Time: 8-10 hours r.t.
Rating: Class 1; Strenuous
Navigation: Moderate
Leader Rating: "I", Normal Conditions

Original: W. E. von Pertz - Jan 1974


  • Go north on I-5 to the town of Gorman. Get off on the signed Gorman exit. Turn left at the bottom of the off ramp and go under the freeway.
  • Go 0.1 miles and to Peace Valley Road. Turn right.
  • Go 1 mile to the entrance to Hungry Valley Recreation Area on your left (paved). Turn left. If the entrance station is manned, you can avoid payment of the fee by telling the State Park employee that you are passing through to Alamo Mtn. Note your odometer and go as follows:
  • At 7.8 miles, intersection. Turn right (west) toward "Piru Creek", signed.
  • At 12.2 miles, improved car camping area on right, with toilets. Often used as a meeting point.
  • At 12.4 miles, Piru Creek Crossing. There is a seasonal gate just past this stream crossing.
  • At 14.4 miles, the pavement ends.
  • At 18.8 miles, fork the left. Keep right.
  • At 18.9 miles, junction with the Alamo Mountain Road. (To the right leads to Twin Pines Campground and Alamo Mountain Route 2.) Turn left. Note your odometer again and go as follows:
  • At 3.3 miles, fork immediately beyond a small road cut through the ridge. (To the right leads to Alamo Mtn Route 1.) Turn left.
  • At 4.0 miles, the road continues east at the Little Mutau trailhead. Past this point the road can sometimes be poor but usually passable.
  • At 6.3 miles, the parking spot for McDonald Peak.
  • At 7.2 miles, an iron pipe gate and a large parking area, suitable for car camping. Park here.


From the parking area (6,500') pass the gate and hike east on the old road for one mile to the obvious high point of the road. This is the summit area of Sewart Mountain. Continue downhill on the old road for about ½ mile to a fork with an obscure road on the right, signed "Sespe Wilderness". Turn right onto this road (continuing straight leads to Snowy Peak and Black Mountain #2). Follow this overgrown road as it first descends steeply south to a saddle, turns east over bump 6043, then proceeds downhill in roller-coaster fashion. After about 2½ miles the overgrown road turns to trail. Follow the trail eastward onto the northern slopes of a forested ridge, looking for a side trail coming steeply in from the right, possibly signed "Cobblestone Trail". Turn right on this side trail, which is very deteriorated and should be considered cross-country travel. Take this old trail as it goes southeast up a ridge. After a long half mile it comes to a fork in a shallow saddle with the remains of a sign (5,840'+). Turning right on an overgrown trail at this saddle goes to Cobblestone Mountain. Continue straight (east) along the ridgeline following a spotty use-trail over and around several bumps. The route turns into the saddle north of bump 6,138, and then ascends through brush to the summit.


Cobblestone Mtn is often combined with White Mountain #2. This hike is 18 miles r.t. and has 6,500' gain.

The peak is in the Sespe Wilderness, but wilderness permits are not required at this time.

Contact the USFS at (661) 245-3731 for information about the status of the seasonal gate at the Piru Creek crossing.

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Hundred Peaks Section, Angeles Chapter, Sierra Club
Published 14-Jun-2001
© 2001 - All Rights Reserved

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