
The Okanogan River carves a fertile valley through this portion of north-central Washington, creating a landscape of contrast between irrigated bottomlands and the steep slopes of Whitestone Mountain and Whisky Mountain. At the heart of the valley lies the community of Ellisforde, where local infrastructure including a Grange Hall and Cem suggest a settled agricultural history. The river's meandering course is punctuated by oxbows like Horseshoe Lake, while the western uplands feature the prominent Whitestone Flats and the Whitestone Coulee geological formation.
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This is the sole edition of this map. No revisions or reprints were ever made.
1902 · Osoyoos
USGS Topo · 1:125,000
1904 · Osoyoos
USGS Topo · 1:125,000
1906 · Chopaka
USGS Topo · 1:125,000
1954 · Okanogan
USGS Topo · 1:250,000
1956 · Loomis
USGS Topo · 1:62,500
1957 · Conconully
USGS Topo · 1:62,500
1957 · Tonasket
USGS Topo · 1:62,500
1957 · Oroville
USGS Topo · 1:62,500
1958 · Okanogan
USGS Topo · 1:250,000
1975 · Oroville NW
USGS Topo · 1:24,000