Andrew Morita Dennis A. Clark Andrew Y. Morita Peter Martin 20070601 vector digital data Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?anza_hydrogeologic_structures This digital geospatial dataset documents the fault traces in the Anza and Terwilliger area of southwest Riverside County, California, that were modified from Moyle (1971) by Woolfenden and Bright (1988, figure 8). The fault information is used to help assess ground-water level changes in the area of Anza and Terwilliger between 2004 and 2005. This dataset documents the locations of faults in Anza and Terwilliger area of Riverside County, California. The data set is used to assess the potential effect of faults on ground-water levels, flow and chemistry within the region. This faults data set is one of three data sets that comprise the "Water-level changes between fall 2004 and spring 2005 in Anza-Terwilliger area, Riverside County, California". 1976 publication date Complete None planned -116.797536 -116.585690 33.605984 33.486463 American Geological Institute, Glossary of Geology inlandWaters Faults, ground-water U.S. Board of Geographic Names (BGN), and Geographic Names Information System (GNIS). Anza-Terwilliger Riverside County California None None Andrew Morita U.S. Geological Survey Geographer mailing address

4165 Spruance Road, Suite 200

San Diego California 92101 United States (619)225-6167 (619)225-6101 amorita@usgs.gov http://water.usgs.gov/GIS/browse/anza_hydrogeologic_structures.jpg Illlustration of data set jpg Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 Moyle, W.R. Jr. 1976 Water Resources Investigations Report 76-10 The line features found in this data set represent locations of faults, approximate locations and concealed locations. Lines may overlap, however no duplicate lines exist in this data set. All line features representing faults on the hard copy in Woolfenden and Bright (1988) in this data set were digitized. The data set is complete and is not anticipated to change. The accuracy of the compiled digital line features in the data set is based upon the accuracy of source maps which generally are compiled to meet National Map Accuracy Standards. Due to the nature of the original figure spanning over two pages, there is potential for increased horizontal error where images were edge matched. Every effort was made to accurately edge match the seam to keep the integrity of the line work, additionally horizontal positional accuracy of line features in the data set were tested by visually comparing to digital source maps using GIS. Linda R. Woolfenden Daniel J. Bright 1988 U.S. Geological Survey Water Resources Investigations Report 88-4029 http://pubs.er.usgs.gov/usgspubs/wri/wri884029 Andrew Morita Dennis A. Clark Peter Martin 2007 Data Series CA-3486 San Diego, CA U.S. Geological Survey 80000 paper 1988 ground condition Moyle (1976) U.S. Geological Survey Line features representing faults were digitized from Woolfenden and Bright; (1988 fig. 8). The figure was scanned and geographically registered using the tic marks depicted on the figure. The faults from the figure were traced using ESRI ArcGIS software and saved as a shapefile. Woolfenden and Bright (1988) 20060601 Andrew Morita U.S. Geological Survey Geographer mailing address

4165 Spruance Road, Suite 200

San Diego California 92101 USA (619)225-6167 (619)225-6101 amorita@usgs.gov Vector String 128 Universal Transverse Mercator 11 0.999600 -117.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000032 0.000032 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Anza_hydrogeologic_structures Faults of Anza-Terwilliger, Riverside County, California USGS FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. Type Fault type USGS Text field defining the line features. U.S. Geological Survey Ask USGS - Water Webserver Team mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Contact via email or phone. Downloadable Data Although these data have been processed successfully on a computer system at the U.S. Geolocal Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is stronly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indireclty through other sources which may have changed the data in some way. It is also stronly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to documnet the data set in nonproprietary form, as well as in ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. SHP 9.1 ESRI Shapefile no compression applied 0.012 http://water.usgs.gov/GIS/dsdl/anza_hydrogeo_struct.zip None 20071203 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+anza_hydrogeologic_structures FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998