Airports 3,551 to 3,600
Mount Lemmon Sky Center Observatory Heliport
Imperial Valley Cattle Company Number 1 Airstrip
Apple Valley Airport
Apple Valley,
California,
United States
—
769 km
(415 nm)
SW
Castle Dome Army Heliport
Yuma Proving Ground(Yuma),
Arizona,
United States
—
770 km
(416 nm)
SSW