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Map Layer Info

Aquifers of Alluvial and Glacial Origin

What this map layer shows:

Loose sand and gravel aquifers of alluvial and glacial origin.
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Background Information
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An aquifer is a geologic formation, group of formations, or part of a formation that contains sufficient saturated, permeable material to yield significant quantities of water to wells and springs. The U.S. Geological Survey (USGS) Water Resources Program collects information on aquifers and other water resources to determine the quantity and quality of the Nation's water supplies. This information is used by Federal, State, and local agencies for water-resources planning and management.

Alluvial aquifers are those that were deposited by a stream or other body of running water in a streambed, on a flood plain, on a delta, or at the base of a mountain. Glacial aquifers are formations that were deposited by a glacier. This map layer was compiled by the USGS.

The Aquifers of Alluvial and Glacial Origin map layer shows unconsolidated sand and gravel aquifers of alluvial and glacial origin north of the southernmost line of glaciation. These aquifers are found in the States of Maine, Vermont, New Hampshire, Connecticut, Massachusetts, Rhode Island, New Jersey, New York, Pennsylvania, Ohio, Indiana, Michigan, Wisconsin, Illinois, Minnesota, Iowa, Missouri, Kansas, Nebraska, South Dakota, North Dakota, and Montana. Additional aquifer information is included in the National Atlas Principal Aquifers of the 48 Conterminous United States map layer. Information on aquifer types can be found on the Aquifer Basics page, and further water science information is available from the USGS Ground Water Information Pages, from the USGS Learning Web Explorers Water page, and from the Ground Water Atlas of the United States.