Hartley Springs (FR 02S78) in CA

Road corridorInyo NF, Mono Lake Ranger District

13 mi from Mammoth Lakes

Maps 7,699 ft

Camping permission not confirmed

Camping is limited to designated sites on part of this road; the exact stretch is not confirmed.

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

VerizonWEAK

AT&TNONE

T-MobileWEAK

StarlinkGOOD

Difficult

All 13.3 miles of this road are maintained for high-clearance vehicles, 7.5 miles of it dirt.
Estimated climb: 2,300 ft over 13.3 miles through 8 switchbacks, with sustained grades near 16% and pitches to 25%.
Terrain estimates show roadside drops of up to ~120 ft on the downhill side.
Dead-end road; turnaround space is not mapped.

Known camping along this road between mile 1.2 and mile 12.4: .

Limited privacy

Limited separation from through roads or other sites here, with the nearest through road 0.2 miles off.
Mount Wood stands 4,929 ft above the map pin, 6.2 miles west.

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.
On part of this corridor: Camping: Designated sites only.
Camping rules

October normals 28–61°F, 1.1″ precipitation. Monthly averages, PRISM 1991–2020.

Hartley Springs (FR 02S78) in CA -- Camping Rules & Access