Oat Mountain


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Looking northwest from Oat Mountain
Looking west from the summit of Oat Mountain
Looking up at Oat Mountain (note radio towers on the summit)
Looking up at Oat Mountain (note radio towers on the summit)

Oat Mountain

  • Location: Santa Susana Mountains north of Chatsworth.  From the 118 Freeway, take the DeSoto Ave. exit.  Head north (turn left if you’re coming from the west, right if from the east) a short distance to the end of DeSoto and turn right on Browns Canyon Road, following the signs for Michael Antonovich Regional Park (not to be confused with nearby Michael Antonovich Open Space or the Michael Antonovich Recreational Trail in San Dimas.)  Follow Browns Canyon Road for 3 miles to the main entrance of the park, stop by the iron ranger and pay the $5 per vehicle/day fee.  Continue a short distance to a parking area on the right side of the road just before reaching a metal gate.
  • Agency: Santa Monica Mountains Conservancy/Michael Antonovich Regional Park
  • Distance: 6.2 miles
  • Elevation gain: 1,850 feet
  • Suggested time: 3 hours
  • Difficulty rating: PG-13 (Elevation gain, steepness, distance)
  • Best season:  September – May
  • USGS topo map: “Oat Mountain”
  • Recommended gear: sun hat; sunblock; insect repellent
  • Recommended guidebook: Afoot & Afield Los Angeles County
  • More information: Peakbagger page here; trip description from a Meetup page here; Everytrail report here; story about Oat Mountain’s former use as missile site LA-88 here
  • Rating: 6
0:00 - Beginning of the hike (click thumbnails to see full sized versions)
0:00 – Beginning of the hike (click thumbnails to see full sized versions)

Oat Mountain (elevation 3,747) is one of the highest points in L.A. County outside the Angeles National Forest.  It’s the tallest peak in the Santa Susana Mountains and despite a radio facility on the summit and likelihood of smog, the views from the top are panoramic, including the Santa Monicas, Verdugos, Simi Hills, Hollywood Hills, San Gabriels and more.

0:17 - Santa Monica Mountains parkland (times are approximate)
0:17 – Santa Monica Mountains parkland (times are approximate)

To be sure, some hikers may be turned off by the fact that the route is entirely on a paved road (closed to traffic other than maintenance vehicles.) The route is almost entirely exposed, but it’s high enough above the valley floor that it can be doable in the summer months, given an early start, at least half a gallon of water and sun protection. The great workout it provides, plus its convenience to the Valley, Santa Clarita and even downtown L.A., makes Oat Mountain a worthwhile destination to keep in mind.

0:31 - Under the shade tree
0:31 – Under the shade tree

From the parking area, follow the dirt road past the gate, almost immediately beginning a steep climb. You get some nice views of Rocky Peak to west and Simi Valley to the south.  Bear right at the first junction and continue your climb on a road signed on maps both as Palo Sola Truck Trail and Oat Mountain Motorway.  At about 2/3 of a mile you pass through a gate with a sign indicating Santa Monica Mountains Parkland, and continue the ascent.

0:45 - Grove of oaks
0:48 – Grove of oaks

At 1 1/4 miles, a lone oak tree a few yards to the right off of the trail makes a nice place to take a break in the shade. You get a view to the east, down into a canyon. Past the oak, another ascent brings you to a mercifully flat stretch.

0:56 - Head right at the fork near the second helipad
1:00 – Head right at the fork near the second helipad

At 1.8 miles, the trail starts bending to the north, passing a helipad site. You continue through another grove of trees (2 miles), staying right at the next junction (2.2 miles), passing a second helipad.

1:08 - Stay straight at the four-way junction
1:12 – Stay straight at the four-way junction

At 2.9 miles, you reach a four-way junction. Cross the road and continue straight ahead, soon reaching the base of the summit. Just before the road ends, climb up a use trail on the left, cross over a concrete barrier and arrive at the fence lining the radio facility. Walking around the fence, you arrive at a flat area on the north side of the summit where you can enjoy some great views of the Santa Clarita Valley and the Santa Susana Mountains before heading back down.

1:12 - Head uphill on the trail to the summit
1:16 – Head uphill on the trail to the summit

Text and photography copyright 2013 by David W. Lockeretz, all rights reserved. Information and opinions provided are kept current to the best of the author’s ability. All readers hike at their own risk, and should be aware of the possible dangers of hiking, walking and other outdoor activities. By reading this, you agree not to hold the author or publisher of the content on this web site responsible for any injuries or inconveniences that may result from hiking on this trail. Check the informational links provided for up to date trail condition information.

1:15 - Looking northwest from Oat Mountain's summit
1:20- Looking northwest from Oat Mountain’s summit
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