
Richland serves as the central hub of this agricultural landscape, situated where the Powder River meets the northern reaches of the Browlee Reservoir. The valley's complex water management is evident through a network of irrigation systems including Howell Ditch, the Waterbury Ditch, and the New Young Ditch, which support the farms of Eagle Valley. To the north, the terrain rises into the Whitman National Forest, marked by numerous drainage gulches like Corral Gulch and Fawn Gulch. The settlement of New Bridge sits at a critical junction of local transit, near the Mill Pond and Squaw Gulch. This 2017 survey reflects a landscape defined by its hybrid of forest management and river-bottom ranching, documented through landmarks like the Eagle Valley Cemetery and the prominent Pleasant Ridge. Local roads such as Sparta Rd and Hoover Grade navigate the steep transitions between the high timberlands and the fertile basin floor.
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This is the sole edition of this map. No revisions or reprints were ever made.
1915 · Pine
USGS Topo · 1:125,000
1955 · Baker
USGS Topo · 1:250,000
1957 · Halfway
USGS Topo · 1:62,500
1957 · Sparta
USGS Topo · 1:62,500
1957 · Durkee
USGS Topo · 1:62,500
1957 · Mineral
USGS Topo · 1:62,500
1959 · Baker
USGS Topo · 1:250,000
1981 · Baker
USGS Topo · 1:100,000
1987 · Richland
USGS Topo · 1:24,000
1987 · Sturgill Creek
USGS Topo · 1:24,000