Hat Mountain, Mountain summit in Lassen County, California

Hat Mountain is a mountain in the Warner Mountains, south of Eagle Peak in Lassen County, California. It rises to 8,741 feet (2,664 m), the highest point in the county, with Lost Lake to the northwest of the summit. Most precipitation there falls as snow because of the elevation.

Hat Mountain lies in the Warner Mountains, south of Eagle Peak, and its 8,741-foot summit is the highest point in Lassen County. The peak rises about 425 metres above the surrounding terrain, and Lost Lake sits to the northwest of the summit. Most precipitation there falls as snow because of the elevation.

The name Hat Mountain appears on maps of Lassen County, where the peak is the highest point at 8,741 feet. The surrounding Warner Mountains country is open rangeland and sagebrush, with no town nearby; the ceb source notes fewer than two people per square kilometre in the area around the mountain.

The route follows rough forest service roads that are difficult to navigate and then crosses unmarked terrain through thick forest and old logging routes. Bringing a detailed map or GPS device is important since trails are not clearly marked.

On clear days the summit offers views toward distant volcanoes including Mount Shasta and Lassen Peak. This far-reaching vista makes the remote location worthwhile for visitors interested in panoramic views.