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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Dana M Infante Marina J Metes Rachel G Gidley U.S. Geological Survey U.S. Geological Survey - ScienceBase More... Categories Data (2) Tag Types Theme (3) Place (3) Catalog Filter Data Theme (1) Harvest Set (3) Catalog Filter Contributor (1) Catalog Filter Data Type (1) Label (1) Tag Schemes None (2) https://www.sciencebase.gov/vocab/category/bis/NFHP%20Data%20Catalog%20 (1) USGS Thesaurus (2) Alexandria Digital Library Feature Type Thesaurus (2) Common geographic areas (2) ISO 19115 Topic Category (2) https://www.sciencebase.gov/vocab/category/bis/NFHPAssessment2015 (1) View Results as: JSON ATOM CSV

Analysis of Escherichia coli, total recoverable iron, and dissolved selenium concentrations and loads for selected 303(d) listed segments in the Grand Valley, western Colorado, 1980–2018 (ver. 3.0, August 2021) The U.S. Geological Survey (USGS), in cooperation with the Grand Valley Drainage District and the Colorado Water Conservation Board, conducted a loading analysis for selected constituents and tributaries to the Colorado River in the Grand Valley, western Colorado, using data from 1991 to 2018, to characterize concentrations, stream loading, and load reductions for Escherichia coli, total recoverable iron, and dissolved selenium for stream segments on the State of Colorado 303(d) list of impaired waters. Escherichia coli, total recoverable iron, and dissolved selenium concentrations and streamflow data were compiled from the Water Quality Portal (WQP). The data were submitted to the WQP by the USGS, Colorado Department... Categories: Data Release - Revised; Tags: Colorado, Colorado River, E. coli, Grand Valley, Mesa County, All tags... USGS Science Data Catalog (SDC), environment, load analysis, selenium, streams, total maximum daily load, total recoverable iron, water quality, Fewer tags National Fish Habitat Partnership (NFHP) 2015 Anthropogenic Disturbance Data for Southeast Alaska With Link to the Modified NHD with Catchments v1.1 This CSV file contains landscape factors representing anthropogenic disturbances to stream habitats summarized within local and network stream catchments of Southeast Alaska. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing fluvial fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) broadly representative of conditions in the past 10 years, and (4) of sufficient spatial resolution that they could be used to make valid comparisons among local catchment units. Variables summarized at the catchment scale include measures of anthropogenic land uses, population density, roads, dams, mines, culverts, 303d... Categories: Data, Data Release - Revised; Tags: 2015 National Assessment, 2015 National Assessment, Alaska, Anthropogenic factors, DataProduct, All tags... Environmental condition, Habitat Characterization, Lotic, NFHP Cooperator, NHDHR, NoVisual, Regional Assessment, Spatial Data, USGS Science Data Catalog (SDC), drainage basins, environmental assessment, human impacts, inlandWaters, river reaches, streams, water quality, Fewer tags Ephemeral channel heads and digital elevation models used to extract stream networks in Clarksburg, MD (ver. 2.0, October 2021) This dataset describes the location of channel heads survyed in two headwater watersheds in Clarksburg, Montgomery County, Maryland, and the digital elevation models derived from light detection and ranging (lidar) covering the two watersheds. The digital elevation models were used to derive topographic attributes used to delineate drainage networks that were then assessed for accuracy using the field-surveyed channel heads. First posted - January 21, 2021 (available from author) Revised - October 15, 2021 (version 2.0) Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Maryland, USGS Science Data Catalog (SDC), drainage basins, land surveying, river systems, All tags... streams, Fewer tags