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Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey

Publications and source records attributed to Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey.

At least 325 records · Page 18Linked to original sources
USGS2004

Partnerships - Working Together to Build The National Map

Through The National Map, the U.S. Geological Survey (USGS) is working with partners to ensure that current, accurate, and complete base geographic information is available for the Nation. Designed as a network of online digital databases, it provides a consistent geographic data framework for the country and serves as a foundation for integrating, sharing, and using data easily and reliably. It provides public access to high quality geospatial data and information from multiple partners to help inform decisionmaking by resource managers and the public, and to support intergovernmental homeland security and emergency management requirements.

Fact Sheet↗
USGS2004

Factors affecting ground-water quality in Oakland County, Michigan

Ground water is water stored in pores within soil and rock beneath the land surface. When these pores are connected so that water can be transmitted to wells or springs, these bodies of soil and rock are termed aquifers, from two Greek words meaning “water” and “to bear.”

Michigan↗
USGS2004

Changing Salinity Patterns in Biscayne Bay, Florida

Biscayne Bay, Fla., is a 428-square-mile (1,109-square-kilometer) subtropical estuarine ecosystem that includes Biscayne National Park, the largest marine park in the U.S. national park system (fig. 1). The bay began forming between 5,000 and 3,000 years ago as sea level rose and southern Florida was flooded. Throughout most of its history, the pristine waters of the bay supported abundant and diverse fauna and flora, and the bay was a nursery for the adjacent coral-reef and marine ecosystems. In the 20th century, urbanization of the Miami-Dade County area profoundly affected the environment of the bay. Construction of powerplants, water-treatment plants, and solid-waste sites and large-scale development along the shoreline stressed the ecosystem. Biscayne National Monument was established in 1968 to ?preserve and protect for the education, inspiration, recreation and enjoyment of present and future generations a rare combination of terrestrial, marine, and amphibious life in a tropical setting of great natural beauty? (Public Law 90?606). The monument was enlarged in 1980 and designated a national park.

Fact Sheet↗
USGS2004

Ride the Rockies

Explore the source record for details and available documents.

General Information Product↗
USGS2004

Topographic Map of the Northwest Ascraeus Mons Region of Mars - MTM 500k 15/252E OMKT

This map is part of a series of topographic maps of areas of special scientific interest on Mars. The topography was compiled photogrammetically using Viking Orbiter stereo image pairs. The contour interval is 250 meters. Horizontal and vertical control was established using the USGS Mars Digital Image Model 2.0 (MDIM 2.0) and data from the Mars Orbiter Laser Altimeter (MOLA).

IMAP↗