
The Tortolita Mountains dominate this landscape on the boundary of Pinal and Pima counties, where water sources defined life and exploration. Arid canyons and washes like Parker Canyon, Guild Wash, and Fresnal Canyon drain the high ground, while named springs such as Cochie Spring, Bass Spring, and Cottonwood Spring provide critical landmarks in the desert. The presence of several Mine Shafts, a Mine, and multiple Prospect labels scattered across the terrain point to the region's mining heritage. These sites, along with infrastructure like the Riddle Windmill and the Pipeline, illustrate how the area was used for both resource extraction and ranching. Movement across the terrain is primarily marked by 4wd tracks and the Falcon Divide, reflecting the challenging environment of the Tortolita Mountain Park.
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This is the sole edition of this map. No revisions or reprints were ever made.
1904 · Tucson
USGS Topo · 1:125,000
1905 · Tucson
USGS Topo · 1:125,000
1911 · Winkelman
USGS Topo · 1:125,000
1913 · Winkelman
USGS Topo · 1:125,000
1934 · Tucson Mountains
USGS Topo · 1:125,000
1934 · Newman Peak
USGS Topo · 1:125,000
1947 · Cortaro
USGS Topo · 1:62,500
1956 · Tucson
USGS Topo · 1:250,000
1957 · Cortaro
USGS Topo · 1:62,500
1957 · Mount Lemmon
USGS Topo · 1:62,500