Historic

Heliograph Peak

Graham County, AZ

Coordinate verified

10,022-ft peak on the Swift Trail (AZ-366) in the Pinaleño Mountains with a CCC-era 100-ft fire lookout still used in fire season. Named for late-1880s U.S. Army heliograph signal experiments linking Fort Grant and Fort Bowie; hike via Arcadia Trail #328 and Heliograph #328A from Shannon Campground (or the closed lookout road as a foot loop).

Field facts

RegionGraham County, AZ
Coordinates32.6575, -109.8506
AgencyCoronado National Forest (Safford RD)
Era1889 Army heliograph testing; 1933 CCC lookout tower
TrailArcadia NRT #328 → Heliograph #328A (~4-mi loop options)
AccessUS-191 south of Safford → AZ-366 Swift Trail ~22 mi to Shannon Campground

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Public recreation data — BLM & Recreation.gov (RIDB). Verify current access, fees, and seasonal closures before traveling.

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