Bumpass Hell Trail

The trailhead for the Bumpass Hell Trail is located off the main park road in Lassen Volcanic National Park. Parking is available at the trailhead, but it can fill up quickly, especially during peak season. Arriving early in the morning is highly recommended to secure a spot.

Yes, there is an entrance fee to access Lassen Volcanic National Park, which covers the Bumpass Hell Trail. Fees vary depending on the type of vehicle or entry pass. You can find detailed information on current fees and passes on the official nps.gov website for Lassen Volcanic National Park.

The trail is typically open from mid-July through late October, depending on snowmelt. Early to mid-fall offers vibrant colors and cooler temperatures, while mid-summer provides full access to all features. Always check current trail conditions before planning your visit, as snow can persist into early summer.

No, dogs are generally not allowed on the Bumpass Hell Trail or other hiking trails within Lassen Volcanic National Park. Pets are permitted only on paved roads, in campgrounds, and in picnic areas. Service animals are an exception.

The trail begins with a relatively flat, well-defined path of compacted dirt. About a mile in, it transitions to a descent into the Bumpass Hell basin, which can include rock steps and steeper slopes. Within the hydrothermal basin, you'll walk on a short boardwalk loop. Hikers may encounter hardpacked dirt and rock, and even significant snow, especially in early summer.

The trail leads to Lassen Volcanic National Park's largest hydrothermal area, featuring giant steam vents, bubbling mud pots, and vibrant hot springs. The landscape is incredibly colorful, with mineral-rich waters and stained soils. You'll also pass viewpoints like Brokeoff Volcano Vista and View of Crumbaugh Lake, and the unique Cold Boiling Lake.

The trail is generally rated as moderate. While much of the initial section is relatively flat, the descent into and ascent out of the basin can be steep. The high elevation (around 8,000 feet) can also make it feel more challenging. However, it's considered accessible for a wide range of ages and abilities, making it suitable for active families. Proper footwear is essential.

Proper closed-toe footwear with good tread and ankle support is highly recommended. Layers are advisable due to changing mountain weather. Bring plenty of water, snacks, sun protection (hat, sunscreen), and a map. Trekking poles can be helpful, especially for the steeper sections or if snow is present.

Yes, the route primarily follows the Bumpass Hell Trail. However, sections of the trail also intersect with other parts of the Bumpass Hell Trail and the Crumbaugh Lake Trail.

It's notable for providing access to Lassen Volcanic National Park's largest and most active hydrothermal area, often compared to Yellowstone. The trail's name comes from an early explorer who scalded his leg here. Today, elevated boardwalks allow safe viewing of features like "Big Boiler," one of the world's hottest fumaroles, creating an immersive experience of a still-active volcanic landscape.