State Park
Henninger Flat
Altadena, CA
$0.00 /night
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.
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Amenities
Flush Toilets
Picnic Tables
Fire Rings
Trash Service
Cell Service
Pet Policy
Pets allowed on leash
Campground Rules
- Campfires generally permitted — verify current fire restrictions before lighting
Within ~30 miles
Trails near Henninger Flat
Mount Wilson Loop
California
33.0 km3,338 mgain
Difficult
Henninger Flats Trail
California
8.9 km1,116 mgain
Moderate
Altadena Crest Trail [CLOSED]
California
6.6 km655 mgain
Moderate
Henninger Loop via Idlehour and Sam Merrill Trail
California
25.6 km2,957 mgain
Difficult
Mount Wilson Toll Road Climb
California
27.2 km2,587 mgain
Difficult
Mount Wilson Road, Idle Hour, and Mount Lowe Trail Loop
California
36.9 km3,619 mgain
Difficult
