Net Acid Production, Acid Neutralizing Capacity, and Associated Mineralogical and Geochemical Characteristics of Animas River Watershed Igneous Rocks Near Silverton, Colorado By Douglas B. Yager, LaDonna Choate, and Mark R. Stanton 2008 Scientific Investigations Report 2008-5063 Contact: Douglas B. Yager (Geologist) U.S. Geological Survey PO Box 25046, MS 973 Denver Federal Center Denver, CO 80225 Phone (303)236-2487 Fax (303)236-3200 Access: The report, map, and accompanying GIS files can be downloaded from the USGS server on URL http://pubs.usgs.gov/sir/2008/5063/. Paper copies of the report and map can be printed from the downloaded PDF files. In addition, printed copies may also be ordered. Copies of the original may be available. For more information or ordering assistance, call 1-888-ASK-USGS (1-888-275-8747), visit http://ask.usgs.gov, contact any USGS Earth Science Information Center (ESIC), or write: USGS Information Services Box 25286 Denver, CO 80225 The map and database is presented in ESRI Arc Coverage, ArcExport, and Shapefile formats. Report, Map, and GIS files are as follows: Readme file: 00readme.txt Report: SIR08-5063.pdf Map: SIR08-5063map.pdf Metadata file: SIR5063.met SIR5063_GIS.zip ESRI GIS files: ARC Coverage files: ancutm (folder) info (folder) Arc Export file: Ancutm.e00 Arc Shapefiles: ancUTM.shp ancUTM.shx ancUTM.dbf ancUTM.prj ancUTM.sbn ancUTM.xml