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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2017-649-FA

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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): Andrew Stevens

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

Scientific Purpose/Goals: Topographic and Bathymetric survey of Little Holland Tract and Wildlands restoration site

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

Start Port/Location: Rio Vista, CA

End Port/Location: Rio Vista, CA

Start Date: 2017-06-26

End Date: 2017-06-30

Equipment Used: Waverunners, camera, Trimble R7 GPS (AS)

Information to be Derived: Combined topographic/bathymetric map of Little Holland Tract and Wildlands restoration site.

Summary of Activity and Data Gathered: base, bathy, field_notes, matlab, photos, planning.svp, and topo data submitted to FAD 6/29/2017; Andrew Stevens

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

Affiliate Staff:

Notes: Entries for this field activity are based on entries from Field Activity 2015-642-FA


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)


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,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Waverunners --- Navigation
Single Beam
camera --- Photo
Trimble R7 GPS (AS) --- Benchmarks
Topography data collected in the Liberty Island Conservation Bank portion of the Cache Slough Complex (This portion of the USGS data release presents topography data acquired in the Liberty Island Conservation Wildlands restoration site in 2017 (USGS Field Activity Number 2017-649-FA). Topographic data were collected on June 26 and 27, 2017 by walking with global navigation satellite system (GNSS) receivers mounted on backpacks. Hand-held data collectors were used to log raw data and display navigational information as the surveyors traversed the landscape. The final point data are provided in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM) Zone 10 North, meters coordinate system.)

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