State Park
Henninger Flat
Altadena, CA
Pricing varies — check with the operator
Verify with the state park system
State parks set their own rules and reservation systems. Fire bans, road closures, and operating dates change seasonally — check the state park website before traveling.
Pricing
Pricing varies — check with the operator0.0
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Managed by State Park
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- Address:Altadena, CA
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Amenities
Flush Toilets
Picnic Tables
Fire Rings
Trash Service
Cell Service
Campground Rules
- Campfires generally permitted — verify current fire restrictions before lighting
Within ~30 miles
Trails near Henninger Flat
Idlehour Trail
California
0.2 mi69 ftgain
TrailDifficulty: Easy
Mount Wilson Loop
California
20.5 mi10,951 ftgain
TrailDifficulty: Expert
Henninger Flats Trail
California
5.5 mi3,661 ftgain
TrailDifficulty: Expert
Henninger Loop via Idlehour and Sam Merrill Trail
California
15.9 mi9,701 ftgain
TrailDifficulty: Expert
Idlehour Trail via Mount Wilson Trail
California
18.4 mi9,547 ftgain
TrailDifficulty: Expert
Mount Wilson Toll Road Climb
California
16.9 mi8,488 ftgain
TrailDifficulty: Expert
Hunt context
Hunting units around this campground
During hunting seasons, wear blaze orange and check regulations — see the California hunting page
Nearby Campgrounds
Idlehour Trail Camp
Pricing varies — check with the operator
Campground Dispersed
Mt. Lowe Trail Camp
Pricing varies — check with the operator
Campground Dispersed
Zorthian Ranch
Pricing varies — check with the operator
Campground Dispersed
Valley Forge Trail Camp hike in. no drive
Pricing varies — check with the operator
Campground State Park
Millard Trail Camp
Pricing varies — check with the operator
Campground Dispersed
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