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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Types Downloadable (2) OGC WFS Layer (2) OGC WMS Layer (2) Contacts Bennett E Hoogenboom Allison Sussman Eastern Ecological Science Center Patuxent Wildlife Research Center Geology, Geophysics, and Geochemistry Science Center More... Categories Data (2) Tag Types Theme (2) Place (2) USGS Scientific Topic Keyword (2) Harvest Set (2) Tag Schemes none (1) None (1) Geographic Names Information System (GNIS) (1) ISO 19115 Topic Category (2) USGS Thesaurus (1) Common geographic areas (1) View Results as: JSON ATOM CSV

Hydrologic reconnaissance to identify areas of emergent groundwater, Mineral Creek, near Silverton, Colorado, June 2020 Hydrologic reconnaissance of Mineral Creek near Silverton, Colo., was conducted from June 25-27, 2020. Both banks of Mineral Creek and the adjacent hillsides were walked, starting near the ghost town of Chattanooga and proceeding downstream to the confluence of Mineral Creek with the Middle Fork of Mineral Creek. The purpose of this reconnaissance was to identify areas of emergent groundwater on the right (EGR) and left (EGL) banks, a task that was accomplished by following observed surface flows (seeps and springs) upgradient to the point at which they emanated from the subsurface. Coordinates, using a handheld global positioning system (GPS) device, and photographs were obtained at these locations of emergent... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bonita Peak Mining District, CWSC, Colorado, Colorado Water Science Center, GGGSC, All tags... Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Hydrology, MRP, Mineral Creek, Mineral Creek, Mineral Resources, Mineral Resources Program, San Juan County, San Juan Mountains, Silverton, Silverton Caldera, Southern Rocky Mountains Volcanic Field, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Quality, Water Resources, environment, geoscientificInformation, groundwater, hydrogeology, hydrology, water chemistry, Fewer tags EPA 40km Hexagons for Conterminous United States This dataset of 40 square kilometer (sq. km) hexagons was created by the U.S. EPA's Environmental Monitoring and Assessment Program (EMAP) and is being released by the U.S. Geological Survey for public use. The 40 sq. km hexagons were derived from a grid consisting of a triangular array of points that cover the United States and neighboring Canada and Mexico. The base grid of points had a companion areal structure called a tessellation. The base tessellation hexagons constituted this tessellation. In other words, surrounding each grid point was a hexagon that defines the area within which all points are closer to this grid point than to any other, and the set of hexagons defined this way completely and -mutually... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Canada, Conterminous United States, Ecology, Hexagon, Mexico, All tags... Sample frame, Sampling grid, USGS Science Data Catalog (SDC), Wildlife Biology, environment, geoscientificInformation, Fewer tags