GROUND WATER ATLAS of the UNITED STATES
Idaho, Oregon, Washington
HA 730-H

Columbia Plateau regional aquifer system

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Figure 69 Map showing location of the Columbia Plateau regional aquifer system (248K)
downloadable tiff file H069.tiff.gz (1.9MB compressed)

Figure 70 Map showing areal extent of the Grande Ronde Basalt (204K)
downloadable tiff file H070.tif.gz (4.9MB compressed)

Figure 71 Cross-section showing unconsolidated-deposit aquifers in the Columbia Plateau (176K)
downloadable tiff file H071.tif.gz (1.4MB compressed)
Figure 72 Cross-section of the Columbia Plateau regional aquifer system (215K)
downloadable tiff file H072.tif.gz (1.4MB compressed)

Figure 73 Generalized cross-section of the northwestern part of the Columbia Plateau regional aquifer system (180K)
downloadable tiff file H073.tif.gz (1.3MB compressed)

Figure 74 Map showing thickness of the unconsolidated-deposit aquifers (324K)
downloadable tiff file H074.tif.gz (2.6MB compressed)
Figure 75 Map showing estimated hydraulic conductivity of the unconsolidated-deposit aquifers (324K)
downloadable tiff file H075.tif.gz (2.6MB compressed)

Figure 76 Generalized section near the eastern margin of the Columbia Plateau regional aquifer system (140K)
downloadable tiff file H076.tif.gz (1MB compressed)

Figure 77 Map showing thickness of the Wanapum Basalt (316K)
downloadable tiff file H077.tif.gz (2.5MB compressed)

Figure 78 Map showing thickness of the Saddle Mountains Basalt (300K)
downloadable tiff file H078.tif.gz (2.4MB compressed)

Figure 79 Map showing general direction of ground-water movement in the Grande Ronde Basalt (244K)
downloadable tiff file H079.tif.gz (5.1MB compressed)
Figure 80 Map showing general direction of ground-water movement in the Wanapum Basalt (244K)
downloadable tiff file H080.tif.gz (4.3MB compressed)

Figure 81 Map showing general direction of ground-water movement in the Saddle Mountains Basalt (200K)
downloadable tiff file H081.tif.gz (3.3MB compressed)

Figure 82 Map showing predominant aquifers in the Columbia Plateau regional aquifer system (284K)
downloadable tiff file H082.tif.gz (5.2MB compressed)


Table 4 Table showing ground-water conditions in the Columbia Plateau (400K)
downloadable tiff file Htab4.tif.gz (2.1MB compressed)




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