Alto Site (FR 143) in AZ -- Free Camping & Overnight Parking in Arizona

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Alto Site (FR 143) in AZ

Coronado NF, Nogales Ranger District
3,973 ft
Maps
RUTTED
VerizonMARGINAL
AT&TNONE
T-MobileUSABLE
StarlinkEXCELLENT
Rules not confirmed

Coronado National Forest, Nogales Ranger District administers this ground -- we don't have a verified rule for this spot.

A 12.1-mile stretch of dirt National Forest road in Santa Cruz County, AZ.

All 12.1 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (12.1 miles). Climbs 2,600 ft over 12.1 miles -- sustained grades near 16%, with pitches to 27%. Stretches run along a shelf with a drop of up to ~130 ft on the downhill side. Winds through 21 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch. Cattle guards 2.6 and 10.4 miles in. A water crossing 11.1 miles in.

Mount Hopkins stands 4,587 ft above the site, 4.8 miles northeast. The nearest town, Tubac, is 6.7 mi off.

September normals 6189°F, 1.9″ rain. Monthly averages, PRISM 1991–2020.

Fire restrictions

Set by Coronado National Forest, Nogales Ranger District. Stage 1 and 2 orders change within days -- check the current order before you build a fire.

fs.usda.gov
Sources checked August 2026Something wrong here?