The Bryan Mountains rise sharply as a prominent north-south ridge in this arid corner of Yuma County, defining the local topography between two expansive basins. To the northeast, the San Cristobal Valley extends across the landscape, while the Mohawk Valley borders the southern reaches of the quadrangle. In the far southwestern corner, the map captures the beginning of the Sierra Pinta range. This 2014 survey documents the stark desert land patterns of the American Southwest, where topographic relief is the primary feature of interest. The map is organized by the Public Land Survey System, showing township and range lines like t12s r11w and t13s r12w that overlay the undeveloped terrain, illustrating how modern cartography imposes order on a wilderness of canyons and high ridges.
8 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.
1953 · Ajo
USGS Topo · 1:250,000
1957 · Ajo
USGS Topo · 1:250,000
1958 · Ajo
USGS Topo · 1:250,000
1962 · Ajo
USGS Topo · 1:250,000
1963 · Ajo
USGS Topo · 1:250,000
1965 · O'Neill Hills
USGS Topo · 1:62,500
1965 · Granite Mountains
USGS Topo · 1:62,500
1965 · Isla Pinta
USGS Topo · 1:62,500
1965 · Sierra Arida
USGS Topo · 1:62,500
1967 · Ajo
USGS Topo · 1:250,000