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This portion of the USGS data release presents elevation data for Little Holland Tract in the Sacramento-San Joaquin River Delta, California. During May and June of 2015, a team of scientists from the USGS Pacific Coastal and Marine Science Center (PCMSC) conducted multiple surveys (USGS Field Activity 2015-642-FA) to collect topographic and bathymetric data in Little Holland Tract, located in the Sacramento-San Joaquin River Delta between Liberty Island and the Sacramento Deep Water Ship Channel. Bathymetric mapping was conducted at high tide using a personal watercraft (PWC) equipped with echosounders. The PWC platform consisted of survey grade Trimble R7 global navigation satellite system (GNSS) receivers with...


    map background search result map search result map Bathymetric measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, from personal watercraft Elevation contours, Morris Lake (Newton Reservoir), New Jersey, 2018 Quality-assurance points, Morris Lake (Newton Reservoir), New Jersey, 2018 Depth contours, Morris Lake (Newton Reservoir), New Jersey, 2018 Quality-assurance points, Morris Lake (Newton Reservoir), New Jersey, 2018 Elevation contours, Morris Lake (Newton Reservoir), New Jersey, 2018 Depth contours, Morris Lake (Newton Reservoir), New Jersey, 2018 Bathymetric measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, from personal watercraft