
San Pedro and Nawt Vaya anchor this high-desert landscape within the Altar Valley, where dramatic peaks rise sharply from the basin floor. The northern reaches are dominated by the Roskruge Mountains, featuring the prominent Sharp Peak and the volcanic-looking formations of Dobbs Buttes. To the south, the terrain climbs toward the Coyote Mountains, creating a complex network of ephemeral drainages including Mendoza Wash and Viopuli Wash. A dense grid of local desert roads and trails—such as W Black Peak Rd, W Blacksmith Heaven Rd, and S Hayhook Ranch Rd—crisscrosses the southern flats, suggesting a landscape of ranching activity and rural settlement. These paths provide access to localized water sources like Middle Tank and Reservation Tank, which are critical landmarks in this arid environment.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Arivaca
USGS Topo · 1:125,000
1934 · Tucson Mountains
USGS Topo · 1:125,000
1934 · Silver Bell
USGS Topo · 1:125,000
1938 · San Vicente
USGS Topo · 1:62,500
1940 · Palo Alto Ranch
USGS Topo · 1:62,500
1941 · San Vicente
USGS Topo · 1:62,500
1941 · Cocoraque Butte
USGS Topo · 1:62,500
1941 · Baboquivari Peak
USGS Topo · 1:62,500
1942 · San Vicente
USGS Topo · 1:62,500
1943 · Cocoraque Butte
USGS Topo · 1:62,500