
Ahtanum Creek and its various forks and irrigation channels define the agricultural and geographic heart of this Yakima County landscape. The settlement of Tampico serves as a central point where the North Fork Ahtanum Creek and South Fork Ahtanum Creek converge, feeding into the Ahtanum Canal and supporting the Ahtanum Valley. The topography is marked by significant elevations, including Cowiche Mtn to the north and the prominent Ahtanum Ridge to the south.
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This is the sole edition of this map. No revisions or reprints were ever made.
1899 · Ellensburg
USGS Topo · 1:125,000
1901 · Ellensburg
USGS Topo · 1:125,000
1937 · White Swan
USGS Topo · 1:125,000
1950 · Yakima
USGS Topo · 1:250,000
1957 · Yesmowit Canyon
USGS Topo · 1:24,000
1958 · Fort Simcoe
USGS Topo · 1:62,500
1958 · Wiley City
USGS Topo · 1:24,000
1958 · White Swan
USGS Topo · 1:24,000
1958 · Medicine Valley
USGS Topo · 1:24,000
1958 · Naches
USGS Topo · 1:24,000