
Petrified Forest National Park occupies the western edge of this High Desert landscape, where the terrain transitions from protected federal lands into a network of livestock tanks and seasonal washes. The hydrology of the region is defined by the braided courses of Ninemile Wash and Milky Wash, which drain the arid plains toward Puerco Ridge. Water security in this Apache County corridor is marked by man-made catchments like Rock Tank, Reese Tank, and the seasonally variable Red Lake.
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1886 · St Johns
USGS Topo · 1:250,000
1886 · Fort Defiance
USGS Topo · 1:250,000
1892 · Fort Defiance
USGS Topo · 1:250,000
1892 · St Johns
USGS Topo · 1:250,000
1954 · Saint Johns
USGS Topo · 1:250,000
1954 · Gallup
USGS Topo · 1:250,000
1955 · Adamana 1 SW
USGS Topo · 1:24,000
1956 · Adamana 1 NW
USGS Topo · 1:24,000
1957 · Saint Johns
USGS Topo · 1:250,000
1958 · Gallup
USGS Topo · 1:250,000