Possible Costs Associated with Investigating and Mitigating Some Geologic Hazards in Rural Parts of San Mateo County, California

This publication addresses deep-seated landslide susceptibility,
debris flow susceptibility, and other geologic hazards in rural
parts of western San Mateo County. The report also estimates
possible costs of investigating and mitigating the landslide
hazards. The study area includes the Half Moon Bay 7.5'
quadrangle, the Montara Mountain 7.5' quadrangle, and the
Pescadero/Butano Creeks watershed. Hazard maps were derived by
integrating slope data and previous geologic, landslide and debris
flow mapping. The digital database
includes 43 plotfiles for slope maps, Digital Orthophoto Quadrangle
maps, Digital Raster Graphic topographic base maps, geologic maps,
deep-seated landslide inventory maps, deep-seated landslide
susceptibility maps, and debris flow inventory and susceptibility
maps. Twelve ARC export files of supporting digital data are
included in the database, and other data have been published
previously and are available at other USGS websites named in an
accompanying pamphlet (of00-127_2. ps, of00-127_2.pdf, of00-127_2.txt).
All data layers are in Universal Transverse Mercator
(UTM) projection, zone 10. The scale of the source maps limits the
spatial resolution (scale) of the database to 1:24,000.