The Snake River carves a deep valley through the high plateau country of Garfield and Whitman Counties, creating a landscape defined by dramatic elevation changes and historical river-access points. Lake Bryan, the reservoir formed behind Little Goose Dam, dominates the center of the quadrangle, submerging much of the original riverbank where features like Penawawa Bar and Rice Bar are still identified. The settlement of Penawawa sits on the northern bank within Penawawa Canyon, while the namesake locality of Ping is situated to the south, tucked between the numerous steep drainages that feed into the main river system. This area is characterized by an extensive network of named gulches and ridges, such as Penawawa Ridge and Long Hollow Ridge, which represent the challenging topography early residents navigated. Modern routes like Wa-127 and local access roads such as Hastings Mill RD and Bratcher Grade RD follow these natural contours, connecting the isolated upland plateaus to the waterway below.
50 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.
1950 · La Crosse
USGS Topo · 1:62,500
1950 · Penawawa
USGS Topo · 1:62,500
1950 · Endicott
USGS Topo · 1:62,500
1950 · Hay
USGS Topo · 1:62,500
1952 · Hay
USGS Topo · 1:62,500
1952 · La Crosse
USGS Topo · 1:62,500
1955 · Pullman
USGS Topo · 1:250,000
1958 · Pullman
USGS Topo · 1:250,000
1981 · Dusty
USGS Topo · 1:24,000
1981 · Central Ferry
USGS Topo · 1:24,000