## Montana State Library
GIS Data Dictionary
Metadata for Upper Clark Fork Hydrography Arcs from 1:24,000 scale U.S.G.S. quadrangles
Table of Contents

Identification Information
Data Quality Information
Spatial Data Organization Information
Spatial Reference Information
Entity and Attribute Information
Distribution Information
Metadata Reference Information
Full FGDC-compliant Metadata

### Browse Graphic

### Identification_Information:

      Citation
        Originator:        Montana State Library
        Publication_Date:  2/5/1997
        Title:             Upper Clark Fork Hydrography Arcs from 1:24,000 scale U.S.G.S. quadrangles
        Online_Linkage:  http://nris.mt.gov/nsdi/nris/e00/hd33.zip
        Online_Linkage:  http://nris.mt.gov/nsdi/nris/shape/hd33.zip
      Description
        Abstract:
            Hydrography arcs and points from 1:24,000 scale U.S.
            Geological Survey quadrangles, 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://nris.mt.gov/nsdi/nris/cf7.dbf for dates of
            the source quadrangles.
        Purpose:
            Base map data.
      Time_Period_of_Content
        Beginning_Date:  01/01/1961
        Ending_Date:     01/01/1989
      Access_Constraints:
            None
      Use_Constraints:
            Not for use at scales greater than 1:24000.
      Native_Data_Set_Environment:
          Arc/Info coverages or ESRI shapefiles

### Data_Quality_Information:

      Attribute_Accuracy_Report:
            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.
      Completeness_Report:
            The coverage only contains point and node attributes for the
            13 quadrangles that were imported in 1997.
            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.
      Horizontal_Positional_Accuracy_Report:
            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.
      Lineage
        Source_Information
          Originator:  National Mapping Division
                       U.S. Geological Survey
          Publication_Date:  01/01/1961
          Title:  1:24,000-scale Digital Line Graphs
          Publication_Information
            Publication_Place:  Reston, VA
            Publisher:  U.S. Geological Survey
          Other_Citation_Details:
            See http://nris.mt.gov/nsdi/nris/cf7.dbf for publication
            dates of the various quadrangles.
          Source_Scale_Denominator:  24000
          Type_of_Source_Media:  unknown
          Source_Time_Period_of_Content
            Beginning_Date:  01/01/1961
            Ending_Date:     01/01/1989
          Source_Citation_Abbreviation:  Q7.5
          Source_Contribution:
              The data set is a re-processed copy of this source.
      Process_Step
        Process_Description:
          Interpret USGS attributes, project quadrangles to State Plane
          Coordinates, and join quadrangles into one data set.
        Source_Used_Citation_Abbreviation:  Q7.5
        Process_Date:  2/5/1997
        Source_Produced_Citation_Abbreviation:  fin1
      Process_Step
        Process_Description:
          Import additional quadrangles and append to the data that
          was imported in 1992.
        Source_Used_Citation_Abbreviation:  fin1
        Source_Used_Citation_Abbreviation:  Q7.5
        Process_Date:  04/14/1997
        Source_Produced_Citation_Abbreviation:  fin2

### Spatial_Data_Organization_Information:

      Direct_Spatial_Reference_Method:  Vector
      Point_and_Vector_Object_Information
        Number of Arcs:  14759
        Number of Points:  29

### Spatial_Reference_Information:

      Horizontal_Coordinate_System_Definition
        Grid_Coordinate_System_Name:  State Plane Coordinate System 1983
          SPCS_Zone_Identifier:  2500
          Map_Projection_Name:  Lambert Conformal Conic
          Standard_Parallel:  45
          Standard_Parallel:  49
          Longitude_of_Central_Meridian:  -109.5
          Latitude_of_Projection_Origin:  44.25
          False_Easting:   600000
          False_Northing:  0
        Planar_Distance_Units:  meters
        Geodetic_Model
          Horizontal_Datum_Name:  North American Datum of 1983
        Altitude_Encoding_Method:  Implicit coordinate

### Entity_and_Attribute_Information:

      Entity_Type_Definition:  Arc Attribute Table
        Attribute_Label:  CODE
          Attribute_Definition:  Code for hydrography arc type
          Enumerated_Domain_Value   Enumerated_Domain_Value_Definition
          -----------------------   ----------------------------------
            0
            10                      Shoreline
            11                      Shoreline, Coincident Boundary
            12                      Shoreline, Coincident Road
            13                      Shoreline, Coincident USPLS
            14                      Shoreline, Indefinite
            15                      Shoreline, Manmade
            16                      Shoreline, Left Bank
            17                      Shoreline, Right Bank
            18                      Shoreline, Left Bank, Coincident Boundary
            19                      Shoreline, Right Bank, Coincident Boundary
            20                      Shoreline, Intermittent
            21                      Shoreline, Intermittent, Coincident Boundary
            22                      Shoreline, Water-Water Closure
            110                     Stream
            111                     Stream and Ditch
            112                     Stream and Shoreline
            113                     Stream, Coincident Boundary
            114                     Stream, Coincident Road
            115                     Stream, Coincident USPLS
            116                     Stream, estimated
            117                     Stream, Underpassing, Water-Water Closure
            118                     Stream, estimated, Water-Water Closure
            119                     Stream, Siphon
            120                     Stream, Intermittent
            123                     Stream, Intermittent, Coincident Boundary
            124                     Stream, Intermittent, Coincident Road
            125                     Stream, Intermittent, Coincident USPLS
            126                     Stream, Intermittent, estimated
            127                     Stream, Intermittent, Water-Water Closure
            128                     Stream, Intermittent, Underpassing
            129                     Stream, Water-Water Closure
            160                     Left Bank
            161                     Left Bank, Coincident Boundary
            162                     Left Bank, Stream
            170                     Right Bank
            171                     Right Bank, Coincident Boundary
            172                     Right Bank, Stream
            210                     Ditch
            211                     Ditch, Coincident Road
            212                     Ditch, Coincident USPLS
            214                     Ditch, Underpassing
            215                     Ditch, Underground
            216                     Ditch, Elevated
            217                     Ditch, Abandoned
            218                     Ditch, Abandoned, Underpassing
            220                     Ditch, Intermittent
            221                     Ditch, Intermittent, Coincident Road
            222                     Ditch, Intermittent, Coincident USPLS
            223                     Ditch, Intermittent, Coincident Boundary
            224                     Ditch, Intermittent, Underpassing
            225                     Ditch, Intermittent, Underground
            226                     Ditch, Intermittent, Elevated
            227                     Ditch, Intermittent, Water-Water Closure
            230                     Aqueduct
            231                     Aqueduct, Tunnel
            232                     Aqueduct, Underground
            233                     Aqueduct, Intermittent
            234                     Aqueduct, Intermittent, Underground
            235                     Aqueduct, Abandoned
            240                     Flume
            241                     Flume, Elevated
            242                     Flume, Overpassing
            250                     Siphon, Overpassing
            251                     Siphon, Underground, Water-Water Closure
            252                     Siphon, Underpassing
            300                     Lake or Pond
            410                     Reservoir
            430                     Dam
            431                     Dam, Manmade Shoreline
            432                     Dam, Coincident Road
            433                     Dam, Coincident Road estimated
            440                     Dam, Earthen
            441                     Dam, Earthen, Manmade Shoreline
            442                     Dam, Earthen, estimated
            443                     Dam, Earthen, Coincident Road
            450                     Tailings Pond
            700                     Non-visible water boundary
            710                     Water-Water Closure
            821                     Rapids
            822                     Falls
            830                     Wash or Ephemeral Drain
            831                     Wash or Ephemeral Drain
            910                     Water-Water Closure
            911                     Underpassing, Water-Water Closure
            920                     Apparent Limit
            921                     Apparent Limit, estimated
            930                     Intermittent
            940                     Coincident Boundary
            999                     Not Coded
            236                     Aqueduct, Elevated
          Beginning_Date_of_Attribute_Values:  01/01/1961
          Ending_Date_of_Attribute_Values:    01/01/1990

        Attribute_Label:  RVIS
          Attribute_Definition:  Photorevision flag
          Enumerated_Domain_Value   Enumerated_Domain_Value_Definition
          -----------------------   ----------------------------------
            0                       Feature is not photo-revised
            1                       Feature is photo-revised
          Beginning_Date_of_Attribute_Values:  01/01/1961
          Ending_Date_of_Attribute_Values:    01/01/1990

      Entity_Type_Definition:  Point Attribute Table
        Attribute_Label:  ANGLE
          Attribute_Definition:  Clockwise rotation, map symbol
            Range_Domain
              Range_Domain_Minimum:  0
              Range_Domain_Maximum:  291
          Attribute_Units_of_Measure:  degrees
          Beginning_Date_of_Attribute_Values:  01/01/1961
          Ending_Date_of_Attribute_Values:    01/01/1990

        Attribute_Label:  CODE
          Attribute_Definition:  Hydrography point type code
          Enumerated_Domain_Value   Enumerated_Domain_Value_Definition
          -----------------------   ----------------------------------
            300                     Spring
            403                     Gaging Station
            404                     Pumping Station
          Beginning_Date_of_Attribute_Values:  01/01/1961
          Ending_Date_of_Attribute_Values:    01/01/1990

      Entity_Type_Definition:  Node Attribute Table
        Attribute_Label:  CODE
          Attribute_Definition:  Hydrography node type code
          Enumerated_Domain_Value   Enumerated_Domain_Value_Definition
          -----------------------   ----------------------------------
            10                      Upper origin of stream
            11                      Upper origin of stream, spring
            20                      Upper origin of stream at water body
            30                      Sink, channel no longer evident
            40                      Stream entering water body
            50                      Stream exiting water body
            101                     Pumping station, elevated
            111                     Spillway, estimated position
            300                     Spring
          Beginning_Date_of_Attribute_Values:  01/01/1961
          Ending_Date_of_Attribute_Values:    01/01/1990

### Distribution_Information:

### Metadata_Reference_Information:

      Metadata_Date:  07/30/1997
      Metadata_Review_Date:  07/31/1997
      Metadata_Contact:  Gerry Daumiller