Causey, J.D. 2007 1 vector digital data Data Series 290 U.S. Geological Survey http://pubs.usgs.gov/ds/2007/290/ The Public Land spatial data sets (shapefile) contains Public Land Survey section polygons that had mining claims recorded in the U.S. Bureau of Land Management's LR2000 database as of December 31, 2005 (from a May 4, 2006 data extraction) for the period from 1976 to 2005 in Arizona, Arkansas, California, Colorado, Florida, Idaho, Montana, Nebraska, New Mexico, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington, and Wyoming. Data for Alaska from Alaska BLM ALIS database was extracted August 31, 2006. This set of spatial databases was designed to be used with the U.S Bureau of Land Management LR2000 database. Each shapefile contains a field, MTRS, which allows linking information in the LR2000 case_tbl and case_land tables. However, it is only valid for data extracted from the LR2000 database on May 4, 2006, since the database is dynamic and new information may have been added after that date, or older information corrected. Alaska data is valid on August 31, 2006. Shapefile names for the individual states are named: ak_pls_05 (Alaska), az_pls_05 (Arizona), ar_pls_05 (Arkansas), ca_pls_05 (California), co_pls_05 (Colorado), fl_pls_05 (Florida), id_pls_05 (Idaho), mt_pls_05 (Montana), ne_pls_05 (Nebraska), nm_pls_05 (New Mexico), nv_pls_05 (Nevada), or_pls_05 (Oregon), sd_pls_05 (South Dakota), ut_pls_05 (Utah), wa_pls_05 (Washington), and wy_pls_05 (Wyoming). 20060504 publication date Complete Annually -125 -80 49 31 None Mining claim Public Land Survey Meridian Township Range Section ISO 19115 Topic Categories geoscientificInformation None Alaska Arizona Arkansas California Colorado Florida Idaho Montana Nebraska Nevada New Mexico Oregon South Dakota Utah Washington Wyoming United States None These spatial databases are not meant to be used or displayed at any scale larger than 1:100,000 (for example, 1:24,000). Any hardcopies utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, they are obligated to describe the types of modifications they have performed on the hardcopy map. User specifically agrees not to misrepresent these data sets, nor imply that changes they made were approved by the U.S. Geological Survey. J. D. Causey U.S. Geological Survey Geologist mailing and physical address

904 W. Riverside Ave, Rm 202

Spokane WA 99201-1087 USA 509.368.3116 509.368.3199 dcausey@usgs.gov The Public Land Survey System (PLSS) spatial databases were obtained from the sources listed in the respective lineage. J.D. Causey processed the PLSS's removing extraneous fields and calculating a Meridian-township-range-section (mtrs) code for each polygon. A subset of the polygons were selected that corresponds to statistical data derived from BLM LR2000 mining claim records and converted to shapefile format. None Unclassified None Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780 See metadata embedded in the individual shapefiles. All polygons are closed and adjacent polygons do not have identical attributes. Each polygon has one and only one attribute See metadata embedded in the individual shapefiles. See metadata for individual shapefiles Unknown U.S. Forest Service and some unknown entity via BLM's geocommunicator website Unpublished Material 1 100000 website 2006 unpublished material USFS and others, unpub. data, 2004 Polygon shapefile of Public Land sections in Alaska U.S. Forest Service and U.S. Bureau of Land Management Unpublished Material Acquired from website as download in October, 2006. http://www.geocommunicator.gov/LSIS6/map.jsp Digital files 2006 download date USFS and BLM, unpub. data, 2006 Public Land Survey section polygons in Arkansas Arizona State Land Department, Arizona Land Resources Information System Unpublished Material 1 Data provided after request to Arizona State Department of Lands in 2004. 100000 digital tape media 2006 unpublished material ALRIS, unpub. data, 2004 Digital file US Geological Survey Unpublished Material 1993 Acquired from website January 2004. California has sinced redesigned their website and this file could not be found. http://casil-mirror1.ceres.ca.gov/casil/gis.ca.gov/teale/plsa/ 100000 online 1993 ground condition USGS, 2001 An ArcInfo vector spatial database of Public Land Survey section polygons for California Unknown Unknown Colorado PLSS legacy data acquired from U.S. Bureau of Mines when it closed in 1996. None Digital files unknown publication date CO_PLS Public land survey sections FLORIDA GEOGRAPHIC DATA LIBRARY 2003 Florida Geographic Data Library 431 Architecture Building PO Box 115706 Gainesville, FL 32611-5706 Web site: http://www.fgdl.org/ http://www.fgdl.org/download/download.html 100000 online 2002 publication date FGDL, 2003 Polygon shapefile of Public Land Survey sections in Florida Idaho Department of Water Resources 1993 http://www.idwr.state.id.us/gisdata/new%20data%20download/plss.htm 100000 online 1993 publication date IDWR, 1993 ArcInfo vector data for Public Land Survey section polygons in Idaho Natural Resources Information Services, Montana State Library 1996 Publication downloadable from the online linkage site. http://nris.state.mt.us/gis/default.htm 100000 online 2004 publication date NRIS, 1996 ArcInfo vector data for Public Land Survey section polygons in Montana Conservation & Survey Division, University of Nebraska - Lincoln (CSD) U.S. Bureau of Mines 1996 none none Lincoln, Nebraska Conservation and Survey Division, University of Nebraska - Lincoln >Contact_Information: > Contact_Organization_Primary: > University of Nebraska Conservation & Survey Division > Contact_Person: Director > Contact_Position: State Geologist > Contact_Address: > Address_Type: mailing address > Address: 113 Nebraska Hall > City: Lincoln > State_or_Province: NE > Postal_Code: 68588-0517 > Contact_Voice_Telephone: 402-472-3471 > Contact_Facsimile_Telephone: 402-472-2410 > Contact_Electronic_Mail_Address: http://nesen.unl.edu/csd/index.html > Hours_of_Service:Normal business hours http://csd.unl.edu/general/gis-datasets.asp#Sections 100000 online 1990 ground condition CSD, 1996 Public Land Survey section polygons for the state of Nebraska Bureau of Land Management - New Mexico State Office 2003 > Contact_Organization: Bureau of Land Management - New Mexico State Office > Contact_Person: Robert Bewley > Contact_Position: Geographic Sciences Team Lead > Contact_Address: > Address_Type: mailing and physical address > Address: P.O. Box 27115, 1474 Rodeo Rd. > City: Santa Fe > State_or_Province: NM > Postal_Code: 87502-0115 > Country: US > Contact_Voice_Telephone: 505-438-7481 > Contact_Facsimile_Telephone: 505-438-7524 > Contact_Electronic_Mail_Address: Bob_Bewley@blm.gov > Hours_of_Service: 7:00am - 3:00pm, MST http://rgis.unm.edu/data_entry.cfm 100000 online 2003 publication date BLM, 2003 Statewide Public Land Survey System (PLSS) coverage for New Mexico in ArcInfo vector format. USDOI - Bureau of Land Management U.S. Bureau of Mines Unpublished Material > Contact_Organization Bureau of Land Management - Nevada State Office > Contact_Person: Data Administrator > Contact_Position: GIS Coordinator > Contact_Address: > Address_Type: mailing address > Address: P.O. Box 12000 > City: Reno > State_or_Province: NV > Postal_Code: 89520 > Country: USA > Contact_Voice_Telephone: 775-861-6400 > Contact_Facsimile_Telephone: 775-861-6411 > Contact_Electronic_Mail_Address : MO'Brien@nv.blm.gov > Hours_of_Service: 7:30 - 4:30 http://www.nv.blm.gov/gis/geospatial_data.htm 100000 online 1999 ground condition BLM and USBM, unpub. data This is the 100k Public Land Survey System (PLSS) coverage for the state of Nevada. Oregon State Service Center for GIS 1997 None None Web site Oregon State Service Center for GIS Online linkage to source used is no longer active. PLSS data for Oregon is now available at: http://www.oregon.gov/DAS/EISPD/GEO/alphalist.shtml and may be the same GIS. >Metadata_Contact: > Contact_Information: > Contact_Person_Primary: > Contact_Person: Steve Barnett > Contact_Organization: State Service Center for GIS > Contact_Position: Data Administrator > Contact_Address: > Address_Type: mailing address > Address: 155 Cottage Street NE > City: Salem > State_or_Province: OR > Postal_Code: 97310 > Country: USA > Contact_Voice_Telephone: (503)378-2166 > Contact_Facsimile_Telephone: (503)986-3242 > Contact_Electronic_Mail_Address: data@sscgis.state.or.us > Hours_of_Service: 6:30 AM - 4:30 PM Tuesday - Friday http://www.sscgis.state.or.us/data/alphalist.html 100000 online 1994 publication date OSSC, 1994 (1997 version) This theme contains PLS lines for the State of Oregon. This Pls theme includes donation claims lands. Attributes in this theme show Township Range and Section values. Unknown Unpublished Material Shapefile provided by Alex Rodriguez, State of South Dakota in 2006 with information that it was made by Ducks Unlimited. Contacted Ducks Unlimited and they denied making it. No other information available. 100000 electronic mail system 2006 ground condition Ducks Unlimited, unpub. data Spatial database of Public Land Survey System (PLSS) polygons for South Dakota Many State Agencies Unpublished Material PLSS downloaded from website December, 2006. http://agrc.its.state.ut.us/agrc_sgid/sgidlib/SGID_U024_SectionsPLSS.htm 24000 online Utah, unpublished Public land Survey sections in ESRI shapefile format BLM Cadastral Survey Unpublished Material Downloaded from Utah website December, 2006 http://agrc.its.state.ut.us/agrc_sgid/sgidlib/SGID_U024_GCDBSections.htm 100000 Digital files BLM, unpub. data PLSS shapefile for the state of Utah. Washington Department of Natural Resources Unknown 1 vector digital data None None On-line publication Washington Department of Natural Resources Metadata file "Washington PLS metadata.htm" and a shapefile cadastre_thenrit19375519.zip, acquired 11,178 KB, 1/28/2004, 2:32 PM. http://www3.wadnr.gov/dnrapp6/dataweb/dmmatrix.html 24000 online 2002 publication date WDNR, unknown Vector digital data of Public Land Survey System (PLSS) polygons of Washington State Wyoming Water Resources Center 1994 Laramie, Wyoming University of Wyoming Spatial Data and Visualization Center > Contact_Position: Data Manager > Address: Spatial Data and Visualization Center > Address: Box 4008 University Station > City: Laramie > State: Wyoming > Postal_Code: 82071 > Country: USA > Contact_Voice_Telephone: 307-766-2735 > Hours_of_Service: 8 AM to 5 PM MST http://www.wygisc.uwyo.edu/clearinghouse/plss/county.html 100000 online 1994 publication date WWRC, 1994 This dataset represents a 1:100,000 scale Public Land Survey System layer for Wyoming. It was digitized from 57 different paper copies of BLM Surface Management Status series maps for Wyoming. (One map was from Idaho but covered a small section of Wyoming.) Campbell, H.W. Open-File Report 96-736 Menlo Park, CA U.S. Geological Survey http://pubs.usgs.gov/of/1996/of96-736/ Digital file Campbell, 1996 Description of MTRS field Causey, J.D. Data Series 290 Menlo Park, CA U.S. Geological Survey http://pubs.usgs.gov/ds/2007/290 Digital file Causey, 2007 The publication of all data described in this metadata. A field, MTRS, was added to the PLSS databases by concatenating meridian, township, range, and section information into one 18-character string. The string is in the format MM TTTTT RRRRR SSS where MM is a 2-digit number, TTTTT is township, RRRRR is range, and SSS is section for any valid Public Land Survey values. Township and range are 5 characters of the form XXXYZ where X is a numeric, Y is 0 or 2, and Z is N or S for township and E or W for range. A Y value of 2 means that the township or range are fractional township or ranges, otherwise the value is 0. Section is a 3-digit numeric. Then all fields except MTRS were deleted. All datasets were then projected to Geographic coordinate system, NAD27 datum. The spatial databases were attached to a list of unique MTRS values from the LR2000 database and all polygons that had a record in the LR2000 database were selected. This selection was saved as the present shapefile. 2005 J. D. Causey U.S. Geological Survey Geologist mailing and physical address

904 W. Riverside Ave., Rm 202

Spokane WA 99201-1087 USA 509.368.3116 509.368.3199 dcausey@usgs.gov Vector G-polygon 19384 0.001 0.001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 ak_pls_05, az_pls_05, ar_pls_05, ca_pls_05, co_pls_05, fl_pls_05, id_pls_05, mt_pls_05, ne_pls_05, nm_pls_05, nv_pls_05, or_pls_05, sd_pls_05, ut_pls_05, wa_pls_05, wy_pls_05 Shapefile names for spatial databases containing Public Land Survey sections with mining claims recorded in the U.S. Bureau of Land Management LR2000 database May 4, 2006 for lower 48 states and August 31, 2006 for Alaska. MC_activity MTRS A unique Public Land Survey System identifier (Meridian-Township-Range-Section concatenated value) MC_activity An 18-character string of numbers and letters The tables XX_claim, where XX is the two character state zip code designation, is a count of the total number of active claims (lode, placer, tunnel site, and millsite) within a PLSS (Public Land Survey System) section during the year. The table contains data fields (named clm_ct_YR, where YR is a two digit abbreviation for the year beginning in 1976 and proceeding through 2005), and records for each polygon. There may be records for which there is no polygon because the spatial data used was incomplete. The tables XX_lode and XX_placr are the same as XX_claim except XX_lode is a count only of active lode claims and XX_placr is a count only of active placer. The table XX_total is a count of claims at the time the dataset was extracted from the LR2000 database by BLM (U.S. Bureau of Land Management). Fields include information on the case disposition (case_disp) and case type (casetype_txt). Case dispostion can be O (open) or C (closed). Case type can be LODE CLAIM, LODE CLAIMS-NAT PARK, PLACER CLAIM, PLACER CLAIM-NAT PARK, MILLSITE CLAIM, TUNNEL SITE. Causey, 2007 U.S. Geological Survey Information Services mailing address

P.O. Box 25286

Denver CO 80225 USGS Data Series 290 The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply such warranty. In no event shall the USGS have liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by the USGS. This spatial database is not meant to be used or displayed at any scale larger than 1:100,000 (for example, 1:24,000). Shapefile 1.0 PLS sections with information about mine claims in each, for all states in the study unzip 33.4 megabytes http://pubs.usgs.gov/ds/2007/290/ds-290_data.zip none 20080213 J. D. Causey U.S. Geological Survey Geologist mailing and physical address

904 W. Riverside Ave, Rm 202

Spokane WA 99201-1087 USA 509.368.3116 509.368.3199 dcausey@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 None None