Photomosaics and logs of trenches on the San Andreas Fault at Mill Canyon near Watsonville, California
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Abstract
We present photomosaics and logs of the walls of trenches excavated for a paleoseismic study at Mill Canyon, one of two sites along the San Andreas fault in the Santa Cruz Mtns. on the Kelley-Thompson Ranch. This site was a part of Rancho Salsipuedes beginning in 1834. It was purchased by the present owner’s family in 1851. Remnants of a cabin/mill operations still exist up the canyon dating from 1908 when the area was logged. At this location, faulting has moved a shutter ridge across the mouth of Mill Canyon ponding Holocene sediment. Recent faulting is confined to a narrow zone near the break in slope.
Suggested Citation
Fumal, T.E., Dawson, T.E., Flowers, R., Hamilton, J.C., Heingartner, G.F., Kessler, J., and Samrad, L., 2004, Photomosaics and logs of trenches on the San Andreas Fault at Mill Canyon near Watsonville, California: U.S. Geological Survey Open-File Report 2003-469, 1 Plate: 67.65 x 35.18 inches, https://doi.org/10.3133/ofr03469.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Photomosaics and logs of trenches on the San Andreas Fault at Mill Canyon near Watsonville, California |
| Series title | Open-File Report |
| Series number | 2003-469 |
| DOI | 10.3133/ofr03469 |
| Year Published | 2004 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
| Description | 1 Plate: 67.65 x 35.18 inches |
| Country | United States |
| State | California |
| City | Watsonville |
| Other Geospatial | Mill Canyon, San Andreas Fault |