Grand Coulee carves through this portion of Grant County, defining a landscape of dramatic vertical relief and basalt depressions. A chain of significant water bodies, including Blue Lake, Park Lake, Alkali Lake, and Lenore Lake, follows the floor of this ancient glacial pathway. The terrain is marked by sharp breaks in elevation, evident at Big Rock Island and the steep walls of Jasper Canyon and Hybel Canyon. High ground to the east is punctuated by High Hill, while the northwestern corner transitions into flatter agricultural tablelands near Atkins Lake. The county boundary between Douglas Co and Grant Co cuts across the northern section, where early road networks like E Baseline Rd and 12th Rd NE intersect the geological features. This area highlights the unique drainage patterns of the Columbia Basin, where deep draws like Churchill Draw and Dry Coulee illustrate the region's complex erosional history.
29 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.
1930 · Grand Coulee Sheet 3
USGS Topo · 1:31,680
1953 · Ritzville
USGS Topo · 1:250,000
1956 · Ephrata
USGS Topo · 1:62,500
1956 · Stratford
USGS Topo · 1:24,000
1956 · Soap Lake
USGS Topo · 1:24,000
1959 · Ritzville
USGS Topo · 1:250,000
1965 · Ritzville
USGS Topo · 1:250,000
1965 · Jameson Lake SE
USGS Topo · 1:24,000
1965 · St. Andrews
USGS Topo · 1:24,000
1965 · Jameson Lake East
USGS Topo · 1:24,000