Subway Cave

Area Status: Open

Subway Cave is expected to open about late April each year after the snow melt.

Explore the underground world of a lava tube. The self-guided trail is approximately 1/3 mile long and the cave is completely dark, so don't forget to bring a flashlight.

The floor is rough and jagged so wear sturdy shoes. A light jacket will ward off the chill as the cave remains a cool 46 degrees F.  Neither hardhats nor crawling is required!

Pets are not allowed.

For more information about the geology of the Hat Creek Valley, explore the Old Station Visitor Information Center, Spatter Cones Trail and Hat Creek Rim Overlook. These sites are all located within a few miles of Subway Cave

At a Glance

Current Conditions: Subway Cave is Open. Visitor donations can be made at the Old Station visitor center.
Operational Hours: Dawn to dusk.
Area Amenities: Interpretive Site, Picnic tables, Toilets, Drinking water, Parking
Fees: Donations welcomed! If you don't see a way to donate at the site, contact the local Forest Service office to find out how.
Open Season: April - October
Usage: Medium-Heavy
Best Season: Summer
Restrictions: Pets are not allowed.
Closest Towns: Trailhead is located 1/4 mile north of the junction of State Routes 44 and 89. The community of Old Station is located 1/2 mile south of the trailhead.
Water: Water turned-off for season
Restroom: Vault toilets
Operated By: USDA Forest Service
Information Center: Old Station Visitor Information Center 13435 Brians Way Old Station CA 96071 530-335-7517. The Visitor Center is open April - December, Thursday - Monday, 8:30 am - 4:00 pm.  Hat Creek Ranger District. 43225 E. Hwy. 299 | PO Box 220, Fall River Mills, CA 96028. 530-336-5521.

General Information


Located on Highway 89 approximately 1/4 mile north of the Highway 44/89 junction in Old Station.

General Notes:

Rough surfaces and cool temperatures exist in the tube, sturdy shoes and jackets are recommended.


Plenty of parking, tight turn around for RVs and buses.

Recreation Map

Map showing recreational areas. Map Information



Visitor Programs

Not offered at this time. 

Interpretive Areas


Current Conditions: Subway Cave is currently open for the season.  Stop by and explore the hidden depths of an underground world.
Open Season: April-
Best Season: April - November


Drinking water: April through October

Recreation Areas

Recreation Activities


  Area/Length : 
1/3 mile

  Latitude : 

  Longitude :