1. Debris flows triggered by the El Niño rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : Information Services [distributor]. Resource Type: Map Edition: Version 1.0, last modified Feb. 28, 2002. Access & Availability: Loading
2. Delaware Publication/Creation: [S.l.] : Maps.com, c2002 Resource Type: Map Access & Availability: Loading
3. Digital data set of water-level changes in the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1980 to 1996 Author/Creator: Geological Survey (U.S.) Publication/Creation: Lincoln, Neb. : U.S. Geological Survey, 2002 Resource Type: Map Edition: Last update: 3 Apr 2002. Access & Availability: Loading
4. Digital version of Open-file report 92-179, Geologic map of the Cow Cove quadrangle, San Bernardino County, California Author/Creator: Wilshire, Howard Gordon, 1926- Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2002] Resource Type: Map Edition: Version 1.0. Access & Availability: Loading