OF01-4

Las Vegas Valley 1998 subsidence report by John Bell, Alan Ramelli, and Craig dePolo

The 1997-98 study (OF01-4) consists of four principal elements:

  1. Conventional level survey of benchmark level lines across geologic faults
  2. GPS survey of benchmark network established in 1991
  3. Re-inventory of earth fissures
  4. Application of synthetic aperture radar interferometry (InSAR)
Includes a map of faults and earth fissures in Las Vegas Valley (revised in 2000).

Available on the Web: text and map

Open-File Report 2001-4, 123 pages including 15 in color and one large color plate, $46.00