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From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the...
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From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the...
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From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the...
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These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.


map background search result map search result map Elevation Contours, Cannonsville Reservoir, 2015 Elevation-area-capacity table, Cannonsville Reservoir, 2015 Elevation Raster, Cannonsville Reservoir, 2015 USGS Topo Map Vector Data (Vector) 10072 Corbett, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11410 Davenport, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 16256 Franklin, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70292 Hamden, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24397 Lake Como, Pennsylvania 20190920 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 25531 Lewbeach, New York 20191118 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40841 Shawnee Hills, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43798 Sunbury, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 71882 Trout Creek, New York 20191120 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 48168 West Davenport, New York 20191118 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 70621 Lake Eucha East OK Shapefile USGS Topo Map Vector Data (Vector) 9496 Colcord NE, Arkansas 20200915 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 9496 Colcord NE, Arkansas 20200915 for 7.5 x 7.5 minute Shapefile USGS NED 1/3 arc-second Contours for Tulsa W, Oklahoma 20220725 1 x 1 degree Shapefile USGS US Topo 7.5-minute map for Dodge, OK 2018 USGS US Topo 7.5-minute map for Kansas, OK 2019 USGS Topo Map Vector Data (Vector) 23422 Ketchum OK GeoPackage USGS Topo Map Vector Data (Vector) 10072 Corbett, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11410 Davenport, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 16256 Franklin, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70292 Hamden, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24397 Lake Como, Pennsylvania 20190920 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 25531 Lewbeach, New York 20191118 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40841 Shawnee Hills, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 43798 Sunbury, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 71882 Trout Creek, New York 20191120 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 48168 West Davenport, New York 20191118 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 70621 Lake Eucha East OK Shapefile USGS Topo Map Vector Data (Vector) 9496 Colcord NE, Arkansas 20200915 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 9496 Colcord NE, Arkansas 20200915 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Dodge, OK 2018 USGS US Topo 7.5-minute map for Kansas, OK 2019 USGS Topo Map Vector Data (Vector) 23422 Ketchum OK GeoPackage Elevation-area-capacity table, Cannonsville Reservoir, 2015 Elevation Contours, Cannonsville Reservoir, 2015 Elevation Raster, Cannonsville Reservoir, 2015 USGS NED 1/3 arc-second Contours for Tulsa W, Oklahoma 20220725 1 x 1 degree Shapefile