The Harquahala Mountains (Yavapai: ʼHakhe:la) are the highest mountain range in southwestern Arizona, United States and are located southwest of the towns of Aguila and Wenden.

The name originated from the Yavapai 'ʼHakhe:la", which means "running water".

One has a natural opening or bridge through it appearing as an eye high up, and is the namesake for the peaks and Aguila (Spanish for eagle).

Its purpose was to study variations in the solar output as a possible factor in climate prediction.

Designated in 1990, the 22,880-acre (93 km2) the Harquahala Mountain Wilderness lies to the north and east of the summit at 33°49′40″N 113°17′52″W / 33.82778°N 113.29778°W / 33.82778; -113.29778 on the Maricopa / La Paz county line.