The Lake Almanor Basin and surrounding Lassen National Volcanic Park and Lassen National Forest spread across a natural wonderland, a crossroad where the granite of the Sierra Nevada meets the lava of the Cascades. Enjoy hours of pleasure on Lake Almanor with its 52 miles of shoreline, in Lassen Volcanic National Park which boasts the southernmost volcano in the Cascade range and in the 1.2 million acres that make up the Lassen National Forest and Caribou Wilderness area.