4.6
(6240)
7,788
hikers
Subway Cave Trail
00:15
1.02km
0m
Hiking
The Subway Cave Trail offers a unique hiking experience, leading you directly to a fascinating volcanic formation. This easy route covers just 0.6 miles (1.0 km) with a minimal elevation gain of 3 feet (1 metre), making it a quick adventure you can complete in about 15 minutes. As you walk, you'll find yourself immersed in the natural setting of Lassen National Forest, anticipating the distinctive geological feature ahead. It's a perfect short exploration to witness the area's volcanic history up close.
Planning your visit to the Subway Cave Trail is straightforward, as parking is usually available right near the trailhead. While the trail is generally accessible year-round, it's always wise to check current local conditions before you head out. This is especially important if you plan to hike during the winter, as snow or ice could impact access to the cave entrance. A quick check ensures you'll have a smooth and enjoyable trip to this unique spot.
What makes the Subway Cave Trail particularly notable is the opportunity to explore a genuine volcanic formation. This cave provides a tangible glimpse into the geological past of the region, showcasing the forces that shaped the landscape. It stands out as a distinctive feature within Lassen National Forest, offering more than just a simple walk; it's an educational journey into the earth's history.
Last updated: April 23, 2026
Tips
Your route passes through a protected area
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Waypoints
Start point
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84 m
Subway Cave - Volcanic lava tube
Highlight • Cave
Tip by
1.02 km
End point
Parking
Way Types & Surfaces
Way Types
1.01 km
< 100 m
Surfaces
997 m
< 100 m
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Elevation
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Weather
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Today
Friday 31 July
32°C
9°C
0 %
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Max wind speed: 15.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
Where is the trailhead for the Subway Cave Trail located, and what are the parking options?
The Subway Cave Trail is located within Lassen National Forest. Parking can be limited, especially during peak seasons. It's highly recommended to arrive early in the day to secure a parking spot and avoid crowds.
Are there any permits or entrance fees required to hike the Subway Cave Trail in Lassen National Forest?
As the Subway Cave Trail is located within Lassen National Forest, standard park entrance fees may apply. It's always best to check the official Lassen National Forest website for the most current information on fees and any potential permit requirements before your visit.
Is the Subway Cave Trail dog-friendly?
Regulations regarding dogs in Lassen National Forest can vary. While dogs are generally allowed on many trails, they are typically required to be on a leash. Please verify specific rules for the Subway Cave Trail with the Lassen National Forest service before bringing your pet.
What is the best time of year to hike to Subway Cave?
The best time to hike the Subway Cave Trail is generally during the spring and fall months when temperatures are milder. Summer can be very hot, making early morning hikes preferable. Winter conditions may make the trail inaccessible or require specialized gear due to snow and ice.
How difficult is the hike to Subway Cave?
The overall hike to the Subway Cave is considered moderate. The initial portion of the trail is relatively flat and easy. However, the difficulty significantly increases for the final ascent to the cave itself, which involves scrambling up a steep, potentially slippery sandstone incline. Some hikers find this final section challenging.
What is the terrain like on the way to Subway Cave?
The trail offers varied terrain. The initial path is generally flat, winding through desert flora and shaded areas. As you approach the turn-off for the cave, the scenery transitions to a wooded area. The final climb to the cave involves scrambling up a sandstone incline, which can be rocky and steep.
What notable features or landmarks can I expect to see along the route?
The primary attraction is the unique Subway Cave - Volcanic lava tube itself, known for its distinctive formation and panoramic views. Inside the cave, you might also find Native American ruins and petroglyphs, which are historically significant. A crucial landmark to look for is a distinctive Alligator Juniper tree, which marks the turn-off for the spur trail to the cave.
How long does it typically take to complete the hike to Subway Cave?
The hike to Subway Cave, including the return trip, typically takes around 15 minutes to complete the 1km distance. This duration can vary based on your pace, how much time you spend exploring the cave, and the number of people on the trail.
Is the Subway Cave Trail a loop or an out-and-back route?
The Subway Cave Trail is primarily an out-and-back route. You hike to the cave and then return along the same path. While the main trail might connect to other paths, the section specifically leading to the Subway Cave is not a loop.
What should I bring for a hike to Subway Cave?
For this hike, it's advisable to bring plenty of water, especially during warmer months. Sturdy hiking shoes with good grip are essential, particularly for the scramble up to the cave. Sun protection (hat, sunscreen) is also recommended. A headlamp or flashlight can be useful for exploring deeper into the cave.
Are there any specific safety considerations for the final ascent to the cave?
Yes, the final ascent to the Subway Cave involves scrambling up a steep, potentially slippery sandstone incline. It requires good balance and careful footing. There are two main options for this climb: a direct rock chute or a slightly easier route by going left and around a small hill. Evaluate your comfort level and choose the path that feels safest for you.
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