USGS - science for a changing world

USGS Groundwater Information

*  Home *  Monthly Highlights *  Data & Information *  Publications *  Methods & Modeling *  Selected Topics *  Programs *  About *  Contact Us

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

list of aquifers


Sand and gravel aquifers of alluvial and glacial origin

Glacial deposit aquifers form numerous local and some regional highly productive aquifers in the area north of the line of glaciated deposits of sand and gravel. The bedrock aquifers are used primarily where glacial-deposit aquifers are thin or yield little water.

Map of sand and gravel aquifers

color box   Sand and gravel aquifers of alluvial and glacial origin are north of the line of continental glaciation

Holocene alluvium that forms productive aquifers in many river valleys in the glaciated area is derived from reworked glacial deposits, and, it is not distinguished from the glacial deposits. Likewise, sand and gravel deposited by mountain, or alpine, glaciers in Alaska, the northern Rocky Mountains, and the Puget Sound area form local aquifers that are mapped with alluvial sand and gravel with which they commonly are connected. The stream-valley aquifers not in glaciated areas are not shown on the nationwide map because they are not mapped consistently between states.

The most important sand and gravel aquifers of alluvial origin are shown individually on the nationwide principal aquifers map, and, therefore they are not mapped here.s

Sand and gravel aquifers of alluvial and glacial origin include:

Publication source

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

Accessibility FOIA Privacy Policies and Notices logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Contact the USGS Office of Groundwater
Page Last Modified: Tuesday, 14-Apr-2015 13:00:50 EDT