1989 Map of West of Marana

About this map

Avra Valley defines this arid landscape in Pima County, where the desert floor is carved by an extensive network of drainage channels. The Santa Cruz River is the primary artery, joined by numerous desert washes including Los Robles Wash, Brawley Wash, Blanco Wash, and Cocio Wash. This 1989 revision reflects a late-20th-century transition toward rural residential expansion and agricultural infrastructure, evidenced by the grid of local roads and several Gravel Pits that supported area construction. Civil life is anchored by the centrally located Avra Valley School, while transportation across the basin follows established routes such as Silver Bell Road, Trico Road, and Aguirre Road. The presence of a Check Dam and various substations indicates the engineering required to manage water and power in this desert environment.