Heavy rainfall associated with a strong El Nino caused over $150 million in landslide damage in the 10-county San Francisco Bay region during the winter and spring of 1998. A team of USGS scientists collected information on landslide locations and damage costs. Napa County was relatively unaffected in comparison to other counties in the region with approximately $1.1 million in damages assessed.
Additional publication details
USGS Numbered Series
Map showing locations of damaging landslides in Napa County, California, resulting from 1997-98 El Nino rainstorms
Miscellaneous Field Studies Map
1 map :col. ;66 x 45 cm., on sheet 93 x 56 cm., folded in envelope 30 x 24 cm. +1 pamphlet (12 p.)