Montana State Library 19960116 Helena, Montana Montana State Library The former name of this data set on the NRIS web site was "cn102" https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Clark_Fork_Superfund/ClarkForkContour1996.zip http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={33b14155-3366-42a0-b50c-1e21d5224fe0} These data were formerly available from the Montana State Library web site but were removed because they are potentially out of date. Please contact the Federal Superfund Bureau of the Montana Department of Environmental Quality if you want these data so they may tell you if newer or better data are available. If the data are not available from the Department of Environmental Quality, you may request a copy from the Montana State Library data archive. Upper Clark Fork 100-foot contours, derived from U.S. Geologic Survey 30-meter Digital Elevation Models. 1961 1989 Publication Date Complete -113.922096 -112.732002 46.9179001 46.1161995 -113.9188,46.8867,-113.8137,46.8889,-113.1904,46.7454,-112.696,46.5229,-112.692,46.152,-112.8335,46.1479,-112.8032,46.4829,-113.2798,46.6703,-113.7135,46.6921,-113.9152,46.8428,-113.9188,46.8867 ISO 19115 Topic Category elevation contours elevation topography Montana Clark Fork None The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. Montana State Library mailing address

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Helena MT 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov http://docs.msl.mt.gov/geoinfo/images/metadata/superfund/ClarkForkContour1996.gif Elevations along the contours are accurate within plus or minus 15 meters (50 feet). Accuracy is thought to be poor. Approximately 15 meters (50 feet), according to the accuracy reported by the USGS for its 30-meter DEMs. National Mapping Division U.S. Geological Survey 1989 Reston, VA U.S. Geological Survey 24000 1961 1989 Publication Date DEM7 The contours were interpolated from this data. Convert USGS 30-meter DEM data to Arc/Info format and consolidate quadrangles into blocks of about 9 quads. DEM7 19951229 darc Use the Arc/Info LATTICECONTOUR command to interpolate contours from the DEMs. darc 19960103 con1 Project the contour data to a common map projection from UTM zones 12 and 13, join all the blocks (no edgematching). Clip to a region within 6000 feet of the river. con1 19960108 con2 Remove all depression contours. Edit the extremely irregular contours in the floodplain by hand so that they look nice. con2 19960109 fin Vector Complete Chain 1113 State Plane Coordinate System 1983 2500 45 49 -109.5 44.25 600000.00000 0.00000 coordinate pair .1 .1 meters North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 NGVD29 1 FEET Attribute values ARCO664C.AAT Arc Attribute Table LENGTH Length of line 30 59711 METERS ELEVATION Elevation, feet 3300 6400 feet INDEX Flag for 500-foot contours 0 not a 500-foot contour 1 500-foot contour Montana State Library mailing address

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Helena MT 59620-1800 406-444-5354 406-444-5354 geoinfo@mt.gov geoinfo@mt.gov Downloadable Data The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. 20140225 20100526 20040929 19960116 Montana State Library mailing address

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Helena MT 59620-1800 406-444-5354 geoinfo@mt.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 {3BC9DF3C-69F6-44AA-A5AB-6DD2F835BAB0}