Mammoth Basin Overlk (FR 03S37) in CA

Road corridorInyo NF, Mammoth Ranger District

3.7 mi from Mammoth Lakes

Maps 7,908 ft

Dispersed camping generally allowed

U.S. Forest Service default; a local order can restrict it.

Stay limit: 14 consecutive days · 28 days total per calendar year · then move 10 mi

VerizonWEAK

AT&TSTRONG

T-MobileSTRONG

StarlinkGOOD

Difficult

All 2.6 miles of this road are maintained for high-clearance vehicles, dirt the whole way.
Near Mammoth Knolls.
Estimated climb: 410 ft over 2.6 miles, with sustained grades near 16% and pitches to 24%.
Dead-end road; turnaround space is not mapped.

Known camping along this road between mile 1.1 and mile 2.1: .

Limited privacy

Limited separation from through roads or other sites here, with the nearest through road 0.2 miles off.
Mammoth Mountain stands 3,142 ft above the map pin, 5.2 miles southwest.
Estimated night sky: Bortle 3, a dark rural sky.

Within a 10-mile radius of any undeveloped campsite for a period longer than 14 consecutive days… Anywhere within the Inyo National Forest for more than 28 total days during a calendar year.
Camping rules

October normals 27–61°F, 1.3″ precipitation. Monthly averages, PRISM 1991–2020.

Mammoth Basin Overlk (FR 03S37) in CA -- Camping Rules & Access