U.S. Geological Survey 2000 Version 1 map USGS Open-File Report 00-329 Rapid City, SD U.S. Geological Survey Driscoll, D.G., Hamade, G.R., and Kenner, S.J., 2000, Summary of precipitation data for the Black Hills area of South Dakota, water years 1931-98: U.S. Geological Survey Open-File Report 00-329, 151 p. http://water.usgs.gov/lookup/getspatial?sd_pr6190 Ghaith Hamade 2000 map Figure 6 on page 12 in OFR 00-329 http://sd.water.usgs.gov/pubs/abstracts/ofr00-329.html This dataset provides lines of equal average annual precipitation for water years 1961-90 in the Black Hills area of South Dakota. This dataset was created for the Black Hills Hydrology Study (BHHS). The BHHS is a long-term investigation that was initiated in 1990 as a cooperative effort between the U.S. Geological Survey (USGS), the South Dakota Department of Environment and Natural Resources (DENR), and the West Dakota Water Development District. West Dakota represents various local and county cooperators. The purpose of the study was to assess the quantity, quality, and distribution of surface and ground water in the Black Hills area of South Dakota (Driscoll, 1992). The study area includes parts of Butte, Custer, Fall River, Lawrence, Meade, and Pennington Counties in South Dakota. Reviews_Applied_to_Data: This digital coverage was subjected to the same review standard that applies to all U.S. Geological Survey reports. Reviewers were asked to check the topological consistency, tolerances, attribute frequencies and statistics, projection, and graphic extent. The reviewers checked the metadata files for completeness and accuracy. Other_References_Cited: Driscoll, D.G., 1992, Plan of study for the Black Hills Hydrology Study, South Dakota: U.S. Geological Survey Open-File Report 92-84, 10 p. 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 document the data set in nonproprietary form, as well as in ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. water year 1961 water year 1990 publication date Complete None planned -104.079802 -102.961166 44.784441 43.119814 none precipitation isohyetal None These data should not be used at scales larger than 1:100,000 Janet Carter U.S. Geological Survey Hydrologist mailing and physical address

1608 Mt. View Road

Rapid City SD 57702 USA 605 355-4560 ext. 215 605 355-4523 jmcarter@usgs.gov Compilation of this data set and the associated metadata was funded in cooperation with the South Dakota Department of Environment and Natural Resources and the West Dakota Water Development District. SunOS, 5.6, sun4u UNIX ARC/INFO version 8.0.1 Multiple visual checks were done to verify that the attribute data was coincident with the original source information. Chain-node topology present. This data set consists of contours of equal annual precipitation for water years 1961-90 in the Black Hills of South Dakota. Contours generated from a grid that was generated using point data with unknown horizontal accuracy Janet Carter, U.S. Geological Survey 2000 map USGS Open-File Report 00-329 Rapid City, SD U.S. Geological Survey http://sd.water.usgs.gov/pubs/abstracts/ofr00-329.html 100,000 computer program 2000 publication date A geographic information system utilizing an inverse-distance weighting method was used to generate a spatial precipitation gridfrom point precipitation data for the Black Hills area, based on available monthly records. A distributed precipitation grid was created for each month of each water year from 1931 through 1998. Isohyetal maps of lines of equal average precipitation for various periods of record were generated from the grids. An average annual precipitation grid for water years 1961 through 1990 was generated from point data using an inverse-distance weighting method described in Driscoll, Hamade, and Kenner, 2000. The grid was used to generate lines representing annual precipitation for water years 1961-90. The arcs were clipped to the Black Hills Hydrology Study area boundary. 2000 Vector Complete chain 37 Point 4 Universal Transverse Mercator 13 0.999600 -105.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000512 0.000512 meters North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 sd_pr6190_cov.aat Arc attribute table ARC/INFO FNODE# Internal node number for the beginning of an arc (from-node). ESRI Whole numbers that are automatically generated. TNODE# Internal node number for the end of an arc (to-node). ESRI Whole numbers that are automatically generated. LPOLY# Internal node number for the left polygon. ESRI Whole numbers that are automatically generated. RPOLY# Internal node number for the right polygon. ESRI Whole numbers that are automatically generated. LENGTH Length of feature in internal units. ESRI Positive real numbers that are automatically generated. SD_PR6190# Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SD_PR6190-ID User-defined feature number. ESRI Sequential unique whole numbers that are automatically generated. CONTOUR Value given to line of equal average annual precipitation, in inches. USGS 16 29 inches 1 inch U.S. Geological Survey Ask USGS - Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sd_pr6190 Although this data set has 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 this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Shape Full coverage zipped 151 kb http://water.usgs.gov/GIS/dsdl/sd_pr6190shape.zip Export Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/sd_pr6190.e00.gz SDTS Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/sd_pr6190.sdts.tgz Other Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/sd_pr6190shape.tgz None. This dataset is provided by USGS as a public service. 20041108 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sd_pr6190 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998