The documents included in this category address geotechnical concerns and geologic hazards associated with the Late Eocene to Early Oligocene smectitic sediments that occur in the foothills of the Sierra Nevada and adjacent areas of the Sacramento and San Joaquin Valleys.

California Geological Survey Geologic Hazard Notice — Smectitic Sediments

Geologic Hazards in the Early Tertiary Sediments of the Sierra Nevada Foothills of California

Landslide Hazards Along the Interstate 80 Corridor Associated with the Early Oligocene Sedimentary and Volcanic Deposits in the Sierra Nevada