
La Posa Plain dominates this arid landscape at the border of La Paz and Yuma Co, Arizona. The terrain transitions from the broad alluvial expanse of the plain in the west toward the prominent elevations of the Livingston Hills in the northeast. This 2021 survey illustrates a sparse network of desert transit, where Palm Canyon Rd and Valve Two Rd cross the open flats. The ephemeral drainage of Tyson Wash clips the northwestern corner, providing a focal point for the natural drainage patterns that define the region's topography. The map detail reflects the modern township and range grid system across several sections, including t2n r19w and t1n r18w, capturing the intersection of survey boundaries and desert geography in the American Southwest.
13 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.
1933 · Cunningham Mtn
USGS Topo · 1:48,000
1934 · Trigo Peaks
USGS Topo · 1:48,000
1939 · Trigo Peaks
USGS Topo · 1:62,500
1940 · Dome Rock Mts
USGS Topo · 1:62,500
1942 · Blythe
USGS Topo · 1:250,000
1954 · Salton Sea
USGS Topo · 1:250,000
1954 · Trigo Peaks
USGS Topo · 1:62,500
1955 · Salton Sea
USGS Topo · 1:250,000
1959 · Salton Sea
USGS Topo · 1:250,000
1962 · Quartzsite
USGS Topo · 1:62,500