Sediment Investigations in the San Joaquin – Sacramento Delta
![digging machine on grassy meadow with large white windmills in background](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/montezuma_hills.jpg?itok=8q4GikfP)
Detailed Description
USGS Geologists R. Sickler, J. Willard, and B. Philibosian observe as an excavator digs a pit used to investigate sediments uplifted by active tectonic activity in the San Joaquin – Sacramento Delta, California, November 29, 2021.
Sources/Usage
Public Domain.