Palomar's Other Side

Hike the Barker Valley Trail on Palomar Mountain

Palomar Mountain in Northern San Diego County is a popular location for cyclists, thanks to its steep, hairpin road that twists and turns to the observatory up top. But there's a road less traveled on the back side of this mountain range and it leads to beautiful Barker Valley Trail and a 6-mile (round-trip) hike. The catch? You're going to need a 4x4 to reach the trailhead. This adventure begins with an 8-mile stretch of dirt road that takes you up to the Barker Valley Trailhead. It's a bumpy, sometimes rocky ride. Few venture this far (save for 4-wheeling enthusiasts), so you're almost guaranteed a quiet hike. And, just to keep things interesting, the trail begins with a 3-mile, 1,000-foot descent. Pass manzanita and white sage brush as you dip into Barker Valley. Once you've descended you're technically at the end of the trail. But continue following the dirt path to a grassy, butterfly-studded meadow. Plan to spend a few hours picnicking in the grass or checking out the main attraction: a waterfall flowing into a water-slicked pool. (Water flow is best during winter months, but if there's been recent rain or cooler weather, you're likely to see some action.) To find the waterfall, follow the trail past the end of the meadow and the last campsite (the clutch of campsites here are primitive, and for backpackers who have a remote camping permit from the Forest Service). Head back the way you came … and be sure you've saved some water for the arduous ascent. Up, up, and away.

From San Diego, take CA-79 north through Warner Springs. After passing the town, drive 6.5 miles (mile marker 41.9) to Palomar Divide Rd. The unpaved road continues for 7.8 miles to Barker Valley Spur Trailhead, where the hike begins. Park off the side. Keep your eyes out for poison oak bordering the trails. Be sure to bring extra water as the valley can get hot. You can purchase maps of Cleveland National Forest. Dog-friendly (bring extra water for your furry pal, too). Photo by tzegler2.

Trending Stories NorCal

View all Stories
  1. Sequoia Re-opens Crystal Cave

    Step inside Sequoia & Kings Canyon National Park's hidden world by visiting the newly re-opened Crystal Cave—the only cave in the parks open to the public. Closed for four years, this rare marble karst cavern is welcoming visitors once again, but only through the summer season!

    View
  2. Afternoon on the Island

    What is it about tiny islands in the middle of lakes? There’s something that just draws you in. It’s even more fun when getting there is half the adventure because you have to reach it by canoe, kayak, paddleboat, or a ranger-guided boat tour!

    View
  3. Easiest Best Hike in the World

    Choose the easiest and most view-rewarding hike in Yosemite. Okay, we’ll go first: the combination of hiking to Sentinel Dome and Taft Point. Both of these lookouts are within a couple miles of each other on Glacier Point Road

    View
  4. Hiker in the forest at Mount Sutro in San Francisco

    San Francisco's Middle Earth

    No need to travel to New Zealand to visit Middle Earth. San Francisco’s Mount Sutro Open Space is practically Hobbiton—a hidden “shire” in the middle of the city. Okay, maybe not quite as magical, but still an incredible place to take a hike in city limits.

    View

Trending Stories SoCal

View all Stories
  1. Locals' Feature: Jim Litchfield, Owner of Reno Fly Shop

    If there's a river, you're likely to find Jim Litchfield there. As the owner of Reno Fly Shop, Nevada's premier fly fishing outfitter and shop, Jim's passion for rivers knows no bounds: he's fished in places near and far, including Alaska, Bolivia and Christmas Island. But home is beautiful Reno, where he has been running Reno Fly Shop and leading tailored river float and fly fishing adventures (including beginner-friendly options) for over a decade.

    View
  2. Can't Top This

    San Francisco’s Presidio was already a fantastic place to hang out for the afternoon, a beautiful site within the largest urban national park in the United States (the Golden Gate National Recreation Area). And Presidio Tunnel Tops is like a cherry on top. Make that two cherries on top, with the newly opened (July 2025) Outpost Meadow, a 1.5-acre green space located at Old Mason Street across from the Crissy Field Marsh in the Presidio.

    View
  3. Volcanic Activity

    Northern California is home to one of the most unique ecosystems in the country: Lassen Volcanic National Park. The region features geothermal areas, including the largest dome volcano in the world, Lassen Peak. Hike to the top of this active volcano on a 5-mile out-and-back.  

    View
  4. Oh Ryan

    Sure, it’s those whimsical trees that give Joshua Tree National Park its marquee billing; but this beautiful landscape also has surrounding mountains and its night sky—one of the darkest in Southern California and designated an International Dark Sky Park. Joshua Tree has four allowable stargazing parking lots, and a newly opened haven for spending the night nearby...

    View