The Park Valley of Arizona is a small, northwest by southeast trending valley centered on the Gila River in central-east Yuma County.

The southeast border of the valley is the northern Sentinel Plain of Maricopa County which drains northwestwards toward the Gila River Valley.

Interstate 8 is on the south perimeter of the valley, with towns on I-8 of Dateland in the southwest, Aztec on the center-south, and further east, Sentinel on the southeast.

Tenmile Wash, of the Tenmile Wash Watershed[1] has its outfall on the Gila River on the southwest of Park Valley.

The coordinates for Dateland, Arizona, on the southwest border of Park Valley are 32°47′47″N 113°32′28″W / 32.79639°N 113.54111°W / 32.79639; -113.54111 (Park Valley (Arizona))[2]