Old Grandad Tank (FR 4441) in AZ -- Free Camping & Overnight Parking in Arizona

A 6.8-mile stretch of dirt National Forest road in Pima County, AZ. The road serves Echo Spring.

Coronado National Forest, Santa Catalina Ranger District allows dispersed camping here -- 14-day limit in any 60 days. Camp at least 200 ft from water, 5,280 ft from a developed campground.

All 6.8 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (6.8 miles). Climbs 1,500 ft over 6.8 miles -- sustained grades near 24%, with pitches to 30%. Stretches run along a shelf with a drop of up to ~120 ft on the downhill side. Winds through 9 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch. Water crossings 2, 3.2 and 4.9 miles in.

Agua Caliente Hill stands 1,322 ft above the site, 1.2 miles north. The Reserve Tank shoreline is 0.2 mi off. Private here -- the nearest through road is 1.1 miles off. Night skies measure Bortle 3 -- a dark rural sky. The nearest town, Tanque Verde, is 4.4 mi off.