The High Valley Road climbs through very pretty pine forest and provides frequent peekaboo views of Clear Lake, which at 68 square miles is the largest natural freshwater lake in California (remember that Lake Tahoe is partially in California and partially in Nevada). You'll also see 4,305 foot tall Mount Konocti, which is still classified as an active volcano-- although it last erupted over 11,000 years ago. High Valley Road is a great way to climb up to the intersection with Bartlett Springs Road, which leads deep into the Mendocino National Forest.
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From the intersection of Highway 20 with High Valley Road in Clearlake Oaks, drive the paved portion of High Valley Road for 4.27 miles until it reverts to dirt road. This is the trailhead.
A nice easy trail the winds through a ridge overlooking Clear Lake. 2wd is fine, but the spurs you probably need 4wd. I would definitely recommend exploring the spur roads/trails for more adventure and/or campsites. I wouldn't mind going back to camp!
As seen in my video below and like most backcountry in California the spur roads definitely have deadfall strewn about. Clearing the fallen trees is part of the adventure.
I would definitely recommend taking a short detour on Bartlett Springs Rd to Pinnacle Rock. The views as seen on my video are amazing! It was an old Fire Lookout Tower so you have 365 degree views. Spectacular.
Awesome trail with views of the lake. Found the perfect spot for camp! Completed the trail and ended back on Hwy 20 through the town of Lucerne making my way up to 101. No issues on trail, snow is all gone.
Great easy trail. Picked up some garbage left behind. People need to respect these places.
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