U.S. Department of Agriculture, Natural Resources Conservation Service 20070113 vector digital data U.S. Geological Survey Scientific Investigations Map SIM2009-3063 Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?sim3063_Tahoe_Study_Area U.S. Department of Agriculture, Natural Resources Conservation Service 20070113 vector digital data Soil Survey Geographic (SSURGO) database ca693 Fort Worth, TX U.S. Department of Agriculture, Natural Resources Conservation Service ca693 http://SoilDataMart.nrcs.usda.gov/ These data present a ground-water inventory of existing geospatial data and other information needed to determine the extent and characteristics of the aquifers in the Tahoe Basin. Geospatial and other data include geologic maps and soil surveys of the entire basin and for specific watersheds within the basin at the best available scales; vegetation remote-sensing datasets; well information from various local, state, and federal agencies; geophysical surveys; and results of available ground-water studies. The compilation and development of a ground-water inventory geospatial database will assist the United States Forest Service in better assessing the present and future impacts on ground-water resources within the Lake Tahoe Basin. These data were developed to represent hydrogeologic units within the Lake Tahoe basin in support of the Lake Tahoe ground-water inventory. The intended uses of this data set include, but are not limited to, natural resource modeling, mapping, and visualization applications. This dataset is provided as a coutesy by the U.S. Geological Survey. For updates and explicit information about the dataset see the U.S. Department of Agriculture, Natural Resources Conservation Service Soil Data Mart at http://SoilDataMart.nrcs.usda.gov/ 19990324 20070113 publication date Complete None planned -120.264391 -119.857521 39.331484 38.700953 ISO 19115 Topic Geoscientific Information Environment Inland waters None Ground water None Lake Tahoe Nevada California None Although this Federal Geographic Data Committee (FGDC) compliant metadata file is intended to document the data set in nonproprietary form, as well as ArcGIS format, this metadata file may include some ArcGIS-specific terminology. These data are not intended to be used as a survey product and are for reference purposes only. Consider adding the following here. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data. Although this Federal Geographic Data Committee (FGDC) compliant metadata file is intended to document the data set in nonproprietary form, this metadata file may include some ArcGIS-specific terminology. These data are not intended to be used as a survey product and are for reference only.) U.S. Geological Survey Nevada Water Science Center Public Information Officer Mailing and physical address

2730 N. Deer Run Road

Carson City NV 89701 USA (775) 887-7600 (775) 887-7629 http://pubs.usgs.gov/sim/3063/sim3063.pdf Map of the Hydrogeology of the Lake Tahoe Basin, California and Nevada pdf This data set was created by the U.S. Department of Agriculture, Natural Resources Conservation Service Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770 Plume, Russel W., Tumbusch, Mary L., Welborn, Toby L. 2009 vector digital data U.S. Geological Survey Scientific Investigations Map SIM2009-3063 Reston, VA U.S. Geological Survey Vector G-polygon 1 Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000100 0.000100 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 0.000100 Explicit elevation coordinate included with horizontal coordinates Tahoe_StudyArea_Boundary OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. Shape_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. U.S. Geological Survey Ask USGS ? Water Webserver Team Address of the ESIC mailing

507 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+sim3063_Tahoe_Study_Area Downloadable Data Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. File Geodatabase12 9.2 File Geodatabase Spatial and attribute information WinZip 40.7 mb http://water.usgs.gov/GIS/dsdl/SIM3063.zip File Shape 9.2 File Shape Spatial and attribute information WinZip 34.890 mb http://water.usgs.gov/GIS/dsdl/SIM3063_Shapefile.zip XML Workspace Document 2008 Spatial and attribute information WinZip 35.5 mb http://water.usgs.gov/GIS/dsdl/SIM3063_XML.zip This dataset is provided by the USGS as a public service. 20081222 20090326 20081019 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

507 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+sim3063_Tahoe_Study_Area FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998