Montana State Library 19920205 Helena, Montana Montana State Library The former name of this data set on the NRIS web site was "rr13" https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Clark_Fork_Superfund/ClarkFork24kRailroad1989.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data were formerly available from the Montana State Library web site but were removed because they are potentially out of date.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. Railroads from 1:24,000 scale U.S. Geological Survey quad- rangles, Upper Clark Fork Basin, Montana. The quadrangles have been joined into a single data set, but have not been edgematched. The USGS major and minor attribute codes have been replaced with the codes shown in this metadata record. See http://docs.msl.mt.gov/geoinfo/images/metadata/superfund/ClarkFork24kIndex1989.gif for dates of the source quadrangles. 1961 1989 Publication Date Complete -114.033127 -112.436218 47.0556717 45.8224602 -113.7422,47.0114,-113.728,46.8907,-113.2671,46.8877,-113.2614,47.0059,-113.1074,47.0045,-113.1134,46.8863,-112.9877,46.8838,-112.9885,46.7531,-112.8771,46.7533,-112.8649,46.6325,-112.6102,46.6301,-112.6095,46.136,-112.5179,46.1385,-112.5061,46.2568,-112.3592,46.2606,-112.3572,46.1363,-112.2378,46.1329,-112.231,45.996,-112.368,45.9925,-112.3615,45.8684,-112.7403,45.8676,-112.7421,45.7432,-112.8879,45.7452,-112.8817,45.8666,-113.0095,45.8659,-113.0133,45.9965,-113.1321,45.9928,-113.1406,46.1201,-113.26,46.1225,-113.254,46.3683,-113.6362,46.3646,-113.6239,46.5054,-113.4946,46.5068,-113.485,46.3764,-113.3839,46.3799,-113.379,46.5045,-113.1292,46.5,-113.1211,46.379,-113.0063,46.3858,-113.0135,46.4972,-113.1149,46.494,-113.1327,46.621,-113.7579,46.6217,-113.7582,46.7429,-114.1346,46.7473,-114.1339,47.009,-113.7422,47.0114 ISO 19115 Topic Category transportation rail railroad Montana 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/ClarkFork24kRails1989.gif http://docs.msl.mt.gov/geoinfo/images/metadata/superfund/ClarkFork24kIndex1989.gif Attributes were interpreted from the original DLG files by a computer program. The accuracy of this interpretation has not been extensively checked. Attribute accuracy of the original Digital Line Graph data is estimated by the USGS at 98.5 percent, and was tested by them as follows: - manual comparison of the source with hard copy plots. - symbolized display of the digital line graph on an interactive compter graphic system. - Selected attributes that could not be visually verified on plots or on screen, were interactively queried and verified on screen. In addition, U.S. Geological Survey (USGS) Production System (PROSYS) software tested the attributes against a master set of valid attributes for the category; it also checked for selected valid attribute combinations, and for valid attributes relative to topology and dimensionality. All attribute data conform to the attribute codes current as of the date of digitizing. For DLG data, Digital Revision Status = Not revised: Data completeness reflects the content of the source quadrangle. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. For DLG data, Digital Revision Status = Limited Update: This file has undergone limited update digital revision. The file contains only (1) those features that are photoidentifiable on monoscopic source, supplemented with limited ancillary source, and (2) those features, present on the original source quadrangle, that can not be reliably photoidentified but that are not considered particularly prone to change. For DLG data, Digital Revision Status = Standard Update: This file has undergone standard update digital revision. The data completeness of this file meets National Mapping Division standards for feature content. Approximate accuracy is 12 meters, assuming the source maps meet National Map Accuracy Standards (NMAS). NMAS horizontal accuracy requires that at least 90 percent of points tested are within 0.02 inches of the true position. The digital data are estimated to contain a horizontal positional error of less than or equal to 0.003 inches standard error in the two component directions relative to the source quadrangle. Comparison to the graphic source is used as control to assess digital positional accuracy. Cartographic offsets may be present on the graphic source, due to scale and legibility constraints. Digital map elements require edge alignment between data sets. Data along each quadrangle edge are tested against the data set for the adjacent quadrangle using PROSYS; tests check for positional accuracy between data sets within a 0.02 inches tolerance. Features with like dimensionality, and with or without like attribution, that are within the tolerance are adjusted by moving the feature equally in both data sets. Features outside the tolerance are not moved. National Mapping Division U.S. Geological Survey 1961 Reston, VA U.S. Geological Survey See http://docs.msl.mt.gov/geoinfo/images/metadata/superfund/ClarkFork24kIndex1989.gif for publication dates of the various quadrangles. 24000 1961 1989 Publication Date Q7.5 The data set is a re-processed copy of this source. Interpret USGS attributes, project quadrangles to State Plane Coordinates, and join quadrangles into one data set. Q7.5 19920205 fin1 Import additional quadrangles and append to the data that was imported in 1992. fin1 Q7.5 19970414 fin2 Vector Complete Chain 922 Point 43 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 RAILROAD.AAT Arc Attribute Table RVIS Photorevision code 0 Not photorevised 1 Photorevised TRACKS Number of railroad tracks CODE Railroad arc type code 1 Railroad 2 Railroad underpassing 3 Railroad on bridge 4 Railroad in tunnel 6 Abandoned railroad 7 Abandoned underpassing railroad 8 Railroad, underpassing, arbitrary closure 11 Railroad siding 12 Railroad siding underpassing 13 Railroad siding on bridge 15 Railroad siding in snowshed 16 Abandoned railroad siding 18 Railroad siding, arbitrary closure 21 Yard limit 22 Yard limit underpassing 31 Turntable 41 Roundhouse RAILROAD.PAT Point Attribute Table CODE Railroad point type code 1 Bridge abutment 2 Tunnel portal 401 Turntable 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 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. 20140731 20100526 20040929 19970731 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 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 {D47936E4-4C60-4B8D-A611-56BFE14AF3BC}