Big Nasty Trail
Lava Beds National Monument

Located 18.4 miles from Tulelake, California

4 Stars

The Big Nasty trailhead is located near the Mammoth Crater viewpoint. The trail starts along the crater rim and crosses a rough lava field covered with brush. There are views of the many cinder cone volcanoes and surrounding lava fields from this trail.

Big Nasty TrailBig Nasty Trail HikeLava Flow at Big Nasty Trail


The length of the Big Nasty Trail in Lava Beds National Monument is 2.0 miles and requires around 1.1 hours to hike one-way. The trail has a maximum elevation of 5,421 feet, a cumulative elevation gain of 1.0 miles and a cumulative elevation loss of 1.0 miles.



The following chart shows the total calories that you can expend on the Big Nasty Trail while hiking (round-trip) at a typical speed and is based on gross weight (which includes anything carried), the topography, trail length and trail conditions.


Topo Maps

Schonchin Butte Topo Map: Download the free Big Nasty Trail topo map and the adjoining quads to plan your hike. These are full-sheet, 7.5 Minute (1:24,000 scale) Lava Beds National Monument topographic maps.

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Check the Weather Forecast: This weather forecast covers the Big Nasty Trail in Lava Beds National Monument and is provided by the National Weather Service. (

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