
The international border between the United States of America and Estados Unidos Mexicanos cuts diagonally across the northern portion of this map, marking the edge of Pima County. The terrain is characterized by the rising elevations of the Comobabi Mountains, where Horse Peak and Morena Mtn dominate the landscape just south of the settlement at San Agustin. This modern survey illustrates the proximity of these prominent peaks to the border, providing a clear view of the topographical transition from the lower desert floor to the rugged heights of the southern Arizona mountains. The sparsely populated area centers on the crossroads at San Agustin, with the land divisions of t21s r4e and t21s r5e defining the regional survey grid.
7 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1941 · Vamori
USGS Topo · 1:62,500
1943 · Fresnal
USGS Topo · 1:125,000
1943 · Vamori
USGS Topo · 1:62,500
1954 · Sonoyta
USGS Topo · 1:250,000
1956 · Nogales
USGS Topo · 1:250,000
1958 · Nogales
USGS Topo · 1:250,000
1959 · Nogales
USGS Topo · 1:250,000
1963 · La Lesna Mts.
USGS Topo · 1:62,500
1963 · Lukeville
USGS Topo · 1:250,000
1979 · San Miguel
USGS Topo · 1:24,000