Describes past, current, planned, and experimental USGS programs and processes to permit citizen volunteers to collect geographic and cartographic data and information for incorporation into the USGS topographic map revision process.
The Marcellus shale is a black shale unit in the eastern US. It has economic use as a source of natural gas. Environmental concerns arising from the process of exploiting this resource include water supply and wastewater disposal.
USGS water resources home page for Alaska with links to detailed hydrologic studies and real-time and historic data on streamflow, ground and surface water, glaciers, and water quality plus research activities, publications, and contacts.
USGS water resources home page for Colorado with links to detailed hydrologic studies and real-time and long-term data on streamflow, snowpack, sediment, ground and surface water, and water quality, plus publications, news, and drought watch.
USGS water home page for Maine with detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, snow, and water quality plus drought watch, press releases, projects, and contacts.
Links to published materials produced by the Watershed Processes and Modeling Project on watershed model TOPMODEL, compilation of STATSGO soils data, climate change, landscape heterogeneity in ecoregions, and other links.
Homepage for project on Bear Lake, Idaho-Utah, to study past climate change and effect on lake catchment basins. Includes link to summary, personnel, geology, methods used including coring and seismic surveying, and publications.
Site with links to projects of the field center of the Woods Hole Coastal Marine Geology Program on underwater areas between shorelines and the deep ocean, off the U.S. East Coast, the Gulf of Mexico, and in parts of the Caribbean and Great Lakes.