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USGS Groundwater Information

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Principal aquifer

Color bar in aquifer map color

Aquifer Links

Principal Aquifers Map

Ground Water Atlas

USGS Groundwater Data

USGS Links

Water Resources

Groundwater Information

Aquifer Basics Links

Link to list of sand and gravel aquifers


 Willamette Lowland basin-fill aquifers


Map of aquifer system

Description and map of unconsolidated and semiconsolidated sand and gravel aquifers

Publication sources

USGS Home Water Climate and Land Use Change Core Science Systems Ecosystems Energy and Minerals Environmental Health Natural Hazards

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Page Last Modified: Tuesday, 14-Apr-2015 13:48:59 EDT