The confluence of the Columbia River and the Yakima River defines the landscape of this 2017 study of the Tri-Cities region. The urban footprints of Richland, West Richland, and a portion of Pasco are visible alongside the industrial and educational infrastructure that supports the area, including the Washington State Univ Tri - Cities campus and the Richland Airport. Significant irrigation and water management features like the Horn Rapids Ditch and the Columbia Canal reveal the transformation of this arid terrain into a productive river valley.
122 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.
1917 · Pasco
USGS Topo · 1:125,000
1951 · Richland
USGS Topo · 1:62,500
1953 · Walla Walla
USGS Topo · 1:250,000
1958 · Walla Walla
USGS Topo · 1:250,000
1964 · Kennewick
USGS Topo · 1:24,000
1964 · Pasco
USGS Topo · 1:62,500
1965 · Eltopia
USGS Topo · 1:62,500
1965 · Weber Canyon
USGS Topo · 1:24,000
1965 · Badger Mtn
USGS Topo · 1:24,000
1965 · Badger Mtn
USGS Topo · 1:62,500