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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2015-642-FA

AKA: none

Other ID: none

Status: Completed

Organization(s): USGS, Pacific Coastal and Marine Science Center

Funding Program(s): Sediment Transport in Coastal Environments (ZP00FDB)

Principal Investigator(s): Jessica Lacy

Affiliate Investigator(s):

Information Specialist(s): Jessica Lacy

Data Type(s): Location-Elevation: Navigation, Location-Elevation: Transects, Sonar: Single Beam

Scientific Purpose/Goals: Baseline Topographic and Bathymetric survey of Little Holland Tract

Vehicle(s): MarFac; Chevy Suburban - gray; 7 pass; G62-2874L

Start Port/Location: Rio Vista, CA

End Port/Location: Rio Vista, CA

Start Date: 2015-05-22

End Date: 2015-07-31

Equipment Used: Trimble R7 GPS (AS), Waverunners

Information to be Derived: Combined topographic/bathymetric map of Little Holland Tract.

Summary of Activity and Data Gathered: A. Stevens submitted base, bathy, photos, svp, and topo with readme file 6/12/15. A. Snyder submitted gis folder to FAD 9/28/2015

Staff: Timothy Elfers, Cordell Johnson, Alexander Snyder, Andrew Stevens

Affiliate Staff:

Notes: First day in field is for topographic surveys and to recon for appropriate bathy survey vessel. Follow-up field days to finish topo and bathy


Rio Vista, CA Little Holland Tract, Sacramento River Delta

North: 38.39226254 South: 38.26247087 West: -121.708 East: -121.63314819


photo of Fast Eddy (SC)
Fast Eddy (SC)
photo of Waverunner 1 (SC)
Waverunner 1 (SC)
photo of Waverunner 2 (SC)
Waverunner 2 (SC)
photo of San Lorenzo
San Lorenzo


Fregoso, T.A., Stevens, A.W., Wang, R.-F., Handley, T., Dartnell, P., Lacy, J.R., Ateljevich, E., and Dailey, E.T., 2020, Bathymetry, topography, and acoustic backscatter data, and a digital elevation model (DEM) of the Cache Slough Complex and Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, California: U.S. Geological Survey data release,

Snyder, A., Stevens, A., Carlson, E., and Lacy, J., 2016, Digital Elevation Model of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015: U.S. Geological Survey data release.

Snyder, A.G., Lacy, J.R., Stevens, A.W., and Carlson, E.M., 2016, Bathymetric survey and digital elevation model of Little Holland Tract, Sacramento-San Joaquin Delta, California: U.S. Geological Survey Open-File Report 2016-1093.


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Trimble R7 GPS (AS) --- Benchmarks
topo data (published in Science Base, U.S. Geological Survey data release, DOI: 10.5066/F7RX9954)
Waverunners --- Navigation
Single Beam
bathy data (published in Science Base; U.S. Geological Survey data release, DOI: 10.5066/F7RX9954)

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