Sweetwater Flat serves as a central reference point in this high-desert landscape, where the agricultural legacy of the region is evidenced by the presence of the Wiley Ditch cutting through the valley floor. The terrain is defined by the significant rise of the Pine Grove Hills and prominent peaks like Round Mountain and Bald Mountain. The importance of water in this arid environment is clear from the numerous named water sources scattered across the canyons, including Garden Canyon Spring, Dead Ox Spring, and Rye Grass Spring. Transportation and local infrastructure are marked by State Hwy 338 and Risue Rd, which connect the valley to higher elevations such as Sweetwater Summit. The inclusion of Sweetwater Airport highlights the area's continued utility as a remote node in Lyon County's geographic network.
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1891 · Wellington
USGS Topo · 1:125,000
1893 · Wellington
USGS Topo · 1:125,000
1909 · Bridgeport
USGS Topo · 1:125,000
1911 · Bridgeport
USGS Topo · 1:125,000
1920 · Bridgeport
USGS Topo · 1:125,000
1948 · Walker Lake
USGS Topo · 1:250,000
1956 · Desert Creek Peak
USGS Topo · 1:62,500
1956 · Fales Hot Springs
USGS Topo · 1:62,500
1957 · Walker Lake
USGS Topo · 1:250,000
1958 · Bridgeport
USGS Topo · 1:62,500