Identification_Information:
  Citation:
    Citation_Information:
      Originator: Chester A. Ruleman
      Originator: Robert G. Bohannon
      Publication_Date: 2008
      Title: Geologic Map of the Elkhorn Quadrangle, Park County, Colorado
      Edition: version 1.0
      Geospatial_Data_Presentation_Form: map
      Series_Information:
        Series_Name: USGS Scientific Investigations Map
        Issue_Identification: 3043	
      Publication_Information:
        Publication_Place: Denver, Colorado, U.S.A.
        Publisher: United States Geological Survey
      Online_Linkage: http://pubs.usgs.gov/sim/3043/	

  Description:
    Abstract: This geologic map provides new geologic mapping at 1:24,000-scale in the Elkhorn 7.5 minute quadrangle east of Fairplay in central Colorado.
    Purpose: This data represents new geologic mapping which can be used in land-use plannig, hazards analysis, resource assessments, and other geologic framework studies.  

    Supplemental_Information:
      Datasets included in this geospatial database:
      elkhorngeo: polygon features of geologic units, contacts, and faults
      elkhornfold: arc features of fold axes
      elkhornatt: point features of bedding and foliation attitudes
      elkhornpnt: point features of sample locations
      elkhornxsec: arc features of cross section lines

  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2008
    Currentness_Reference: publication date

  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned

  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -105.8750000
      East_Bounding_Coordinate: -105.7500000
      North_Bounding_Coordinate: 39.2500000
      South_Bounding_Coordinate: 39.1250000

  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: American Geological Institute Glossary of Geology
      Theme_Keyword: Geologic map
      Theme_Keyword: Proterozoic rocks
      Theme_Keyword: Mesozoic rocks
      Theme_Keyword: Cenozoic rocks
      Theme_Keyword: Quaternary deposits
      Theme_Keyword: Elkhorn thrust fault
      Theme_Keyword: Laramide Orogeny
      Theme_Keyword: South Park basin

    Place:
      Place_Keyword_Thesaurus: U.S. Board of Geographic Names (BGN) Geographic
        Names Information System (GNIS)
      Place_Keyword: USA
      Place_Keyword: United States of America
      Place_Keyword: Colorado
      Place_Keyword: Front Range
      Place_Keyword: Reinecker Ridge
      Place_Keyword: Mexican Ridge
      Place_Keyword: Link Spring Ridge
      Place_Keyword: The Basin
      Place_Keyword: South Park
      Place_Keyword: Logan Hill
      Place_Keyword: Park County
      Place_Keyword: Como Hartsel Road
      Place_Keyword: Elkhorn Road
      Place_Keyword: Elkhorn Ranch

  Access_Constraints: None

  Use_Constraints: None.  Users of this geospatial database and geologic information derived from it should acknowledge the U.S. Geological Survey as the source of the data.  Although software enables a user to display images at various scales, map data in this report should not be used at scales greater than 1:24,000.

  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Chester A. Ruleman
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: mailing address
        Address: MS 980, Box 25046 Denver Federal Center
        City: Denver
        State_or_Province: CO
        Postal_Code: 80225-0046
        Country: USA
      Contact_Voice_Telephone: 303-236-7804
      Contact_Facsimile_Telephone: 303-236-0214
      Contact_Electronic_Mail_Address: cruleman@usgs.gov

  Browse_Graphic:
    Browse_Graphic_File_Name: 
      http://pubs.usgs.gov/sim/3043/downloads/SIM3043.pdf
    Browse_Graphic_File_Description: graphic representation of map layout
    Browse_Graphic_File_Type: PDF

  Data_Set_Credit: The geologic mapping was done by Chester A. Ruleman and Robert G. Bohannon.  Chester A. Ruleman digitized linework and created initial map layout in Adobe Illustrator with MaPublisher.  Jeremiah B. Workman (USGS) converted linework to ArcInfo coverages, attributed data, and created metadata documentation.

  Native_Data_Set_Environment:
    Windows_XP, Intel
    ARC/INFO version 9.2

Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: Data were checked by the geologist that made the field observations and compilation.  The attributes of this geospatial dataset consist of text identifiers and numbers that indicate the identity of the geologic unit or type of geologic feature, and values for orientations measured in the field.  To check the attribute accuracy, a color check plot was visually compared to the geologist's original compilation.  Discrepancies between the digital geospatial data set and the original analog compilation were corrected as needed.  Machine-created listings of unique attribute values were used to identify spelling errors or other inconsistencies, and corrections were made as needed.

  Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the authors and by the GIS technician who created the digital database.  Automated (ArcInfo) routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information.  Check plots of the map were reviewed by other geologists and a cartographer for consistency with basic geologic principles and general conformity to USGS mapping standards.

  Completeness_Report: Data are complete.  No features that could be accurately represented at a scale of 1:24,000 were eliminated or generalized.  The smallest features represented are approximately 10 meters on a side.  All geospatial database elements are attributed.

  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Most digitized positions on the map that depict distinct contacts between rock formations in the field are estimated to be within 20 m of the actual contact on the land.  Horizontal positional accuracy is tested by visual comparison of hard copy test plots to source maps or comparing locations of data on a computer monitor to other data layers in the same geographic area.  The database contains no elevation data.  Accuracy of these digital data indirectly depends on accuracy of the base maps on which the original source geologic maps were compiled.  These base maps were made by the U.S. Geological Survey, which routinely checks them for compliance with the National Map Accuracy Standards.

  Lineage:
    Process_Step:
      Process_Description: Chester A. Ruleman and Robert G. Bohannon mapped the geology by field observation in combination with analysis of aerial photographs and digital elevation model data.
      Process_Date: 2006 to 2007

    Process_Step:
      Process_Description: The geology linework for the map was compiled by Chester A. Ruleman into an Adobe Illustrator layout using georeferenced base material with the MaPublisher plugin.
      Process_Date: 2007

    Process_Step:
      Process_Description: Adobe Illustrator linework was converted to shapefile format using MaPublisher plugin and converted to ArcInfo coverages by Jeremiah B. Workman (USGS). 
      Process_Date: 2007

    Process_Step:
      Process_Description: Line and polygon attributes and point data orientations were generated using the author generated Adobe Illustrator layout as a guide in ArcInfo by Jeremiah B. Workman (USGS).
      Process_Date: 2007

    Process_Step:
      Process_Description: Technical reviews were provided by Michael Machette (USGS) and Robert Kirkham (CGS).
      Process_Date: 2007

    Process_Step:
      Process_Description: Metadata document prepared by Jeremiah B. Workman.  Database reviewed for conformity with USGS standards by Paco Van Sistine (USGS).
      Process_Date: 2007

    Process_Step:
      Process_Description: Copy edit review provided by Lisa Binder (USGS) and final database prepared for publication by Jeremiah B. Workman (USGS).
      Process_Date: 2008

Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 5
          Ordinate_Resolution: 5
        Planar_Distance_Units: METERS
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 13
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: .9996
            Longitude_of_Central_Meridian: -105.0000
            Latitude_of_Projection_Origin: 0.00
            False_Easting: 500000.0000
            False_Northing: 0.0000
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1927
      Ellipsoid_Name: Clarke 1866
      Semi-major_Axis: 6378206.4
      Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:
  Overview_Description:
    Entity_and_Attribute_Overview: 
      >The database was compiled in ArcEdit as four ArcInfo 
      >coverages.  These coverages have been converted to shapefiles 
      >which are also included with the published dataset.  The 
      >following description applies to the ArcInfo coverages, but may 
      >also be used for the shapefiles with the primary difference 
      >being file names have been shortened (the 'ELKHORN' prefix has 
      >been dropped) to conform to 8.3 naming conventions for 
      >shapefiles, which also affects the non-user-defined attributes, 
      >some item names may have been truncated, and the polygon 
      >coverage 'ELKHORNGEO' which contains both arc and polygon 
      >attributes has been split into two separate sets of shapefiles.
      >
      >The database contains the following three ArcInfo coverages:
      >
      >------------------------------------------------------------
      >---- COVERAGE NAME ---- ENTITY TYPE ---- DESCRIPTION -------
      >------------------------------------------------------------
      >-    ELKHORNGEO    --  Polygons     --  Rock unit areas
      >-                      Lines        --  Rock unit boundaries 
      >                                           (contacts; faults)
      >------------------------------------------------------------
      >-    ELKHORNFOLD   --  Lines        --  Linear geologic 
      >                                           features (fold axes)
      >------------------------------------------------------------
      >-    ELKHORNATT    --  Point        --  Point observations 
      >                                           (bedding and
      >                                           foliation attitudes)
      >------------------------------------------------------------
      >-    ELKHORNPNT    --  Point        --  Point observations 
      >                                           (sample locations)
      >------------------------------------------------------------
      >-    ELKHORNXSEC   --  Lines        --  Cross section lines
      >------------------------------------------------------------
      >
      >------------------------------------------------------------
      >Database structure of ELKHORNGEO.PAT:
      >------------------------------------------------------------
      >
      >COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  
      >    1  AREA                   8    18     F      5                
      >    9  PERIMETER              8    18     F      5                
      >   17  ELKHORNGEO#            4     5     B      -                
      >   21  ELKHORNGEO-ID          4     5     B      -                
      >   25  UNIT                   8     8     C      -                
      >   33  DESCRIPTION          100   100     C      -                
      >
      >Description of user-defined database items in ELKHORNGEO.PAT
      > UNIT:        Abbreviated name of map unit
      > DESCRIPTION: Name of map unit and geologic age (see map plate 
      >                for more detailed description)
      >
      >Unique item values for ELKHORNGEO.PAT
      >-- UNIT ---- DESCRIPTION ------------------------------------
      >   Kfh       Fox Hills Sandstone (Upper Cretaceous) 
      >   Kp        Pierre Shale (Upper Cretaceous)
      >   Qa1       Older stream and fan alluvium, undifferentiated
      >                (late middle Pleistocene)
      >   Qa2       Younger stream and fan alluvium, undifferentiated
      >                (late Pleistocene)
      >   Qac       Alluvium and colluvium, undifferentiated (Holocene
      >                and late Pleistocene)
      >   Qal       Stream alluvium (Holocene)
      >   Qp        Piedmont deposits (middle and early Pleistocene)
      >   Qpl       Playa deposits (Holocene and late Pleistocene)
      >   Tsa       South Park Formation, arkosic member (Paleocene)
      >   Tsc       South Park Formation, conglomeratic member 
      >                (Paleocene)
      >   Tsl       South Park Formation, Link Spring Tuff Member 
      >                (Paleocene)
      >   Tsr       South Park Formation, Reinecker Ridge Volcanic 
      >                Member (Paleocene)
      >   Txc       Elkhorn thrust conglomerate (Paleocene)
      >   Xbg       Biotite gneiss (Early Proterozoic)
      >   Xfg       Felsic gneiss (Early Proterozoic)
      >   YXmr      Mixed metamorphic and igneous rocks (Middle and
      >                Early Proterozoic)
      >   Yqm       Monzogranite (Middle Proterozoic)
      >   w         water
      >
      >
      >------------------------------------------------------------
      >Database structure of ELKHORNGEO.AAT:
      >------------------------------------------------------------
      >
      >COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  
      >    1  FNODE#                 4     5     B      -                
      >    5  TNODE#                 4     5     B      -                
      >    9  LPOLY#                 4     5     B      -                
      >   13  RPOLY#                 4     5     B      -                
      >   17  LENGTH                 8    18     F      5                
      >   25  ELKHORNGEO#            4     5     B      -                
      >   29  ELKHORNGEO-ID          4     5     B      -                
      >   33  DESCRIPTION          100   100     C      -                
      >
      >Description of user-defined database items in ELKHORNGEO.AAT
      > DESCRIPTION: Line type as defined in Digital Cartographic 
      >                Standards
      >
      >Unique item values for ELKHORNGEO.AAT
      >--- DESCRIPTION ----------------------------------------
      >   contact-certain
      >   fault-approximately located
      >   fault-certain
      >   fault-concealed
      >   map boundary
      >   shoreline
      >   thrust fault-approximately located
      >   thrust fault-certain
      >   thrust fault-concealed
      >
      >
      >------------------------------------------------------------
      >Database structure of ELKHORNFOLD.AAT:
      >------------------------------------------------------------
      >
      >COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  
      >    1  FNODE#                 4     5     B      -                
      >    5  TNODE#                 4     5     B      -                
      >    9  LPOLY#                 4     5     B      -                
      >   13  RPOLY#                 4     5     B      -                
      >   17  LENGTH                 8    18     F      5                
      >   25  ELKHORNFOLD#           4     5     B      -                
      >   29  ELKHORNFOLD-ID         4     5     B      -                
      >   33  DESCRIPTION          100   100     C      -                
      >
      >Description of user-defined database items in ELKHORNFOLD.AAT
      > DESCRIPTION: Line type as defined in Digital Cartographic 
      >                Standards
      >
      >Unique item values for ELKHORNFOLD.AAT
      >--- DESCRIPTION --------------------
      >   anticline-certain
      >   syncline-certain
      >   anticline-concealed
      >   syncline-concealed
      >
      >
      >------------------------------------------------------------
      >Database structure of ELKHORNATT.PAT:
      >------------------------------------------------------------
      >
      >COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  
      >    1  AREA                   8    18     F      5                
      >    9  PERIMETER              8    18     F      5                
      >   17  ELKHORNATT#            4     5     B      -                
      >   21  ELKHORNATT-ID          4     5     B      -                
      >   25  DESCRIPTION           50    50     C      -                
      >   75  STRIKE                 2     5     B      -                
      >   77  DIP                    2     5     B      -                
      >
      >Description of user-defined database items in ELKHORNATT.PAT
      > DESCRIPTION: Point type as defined in Digital Cartographic 
      >                Standards
      > STRIKE:      Azimuth of bedding or foliation plane strike
      > DIP:         angle in degrees from horizontal of bedding or 
      >                foliation plane dip
      >
      >Unique item values for ELKHORNATT.AAT
      >--- DESCRIPTION ----------------------------
      >   Inclined bedding-showing strike and dip
      >   Inclined foliation-showing strike and dip
      >   Inclined magmatic foliation-showing strike and dip
      >   Overturned bedding-showing strike and dip
      >   Vertical bedding-showing strike
      >   Vertical foliation-showing strike
      >--- STRIKE -----------------------
      >   0 to 359  (0 if not applicable)
      >--- DIP --------------------------
      >   0 to 90   (0 if not applicable)
      >
      >------------------------------------------------------------
      >Database structure of ELKHORNPNT.PAT:
      >------------------------------------------------------------
      >
      >COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  
      >    1  AREA                   8    18     F      5                
      >    9  PERIMETER              8    18     F      5                
      >   17  ELKHORNPNT#            4     5     B      -                
      >   21  ELKHORNPNT-ID          4     5     B      -                
      >   25  DESCRIPTION          100   100     C      -                
      >  125  NAME                  50    50     C      -                
      >
      >Description of user-defined database items in ELKHORNPNT.PAT
      > DESCRIPTION: Point type as defined in Digital Cartographic 
      >                Standards
      > NAME:        Sample name
      >
      >Unique item values for ELKHORNATT.AAT
      >--- DESCRIPTION ----------------------------
      >   sample location
      >--- NAME -------------------------
      >   EH-2006-01
      >
      >------------------------------------------------------------
      >Database structure of ELKHORNXSEC.AAT:
      >------------------------------------------------------------
      >
      >COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  
      >    1  FNODE#                 4     5     B      -                
      >    5  TNODE#                 4     5     B      -                
      >    9  LPOLY#                 4     5     B      -                
      >   13  RPOLY#                 4     5     B      -                
      >   17  LENGTH                 8    18     F      5                
      >   25  ELKHORNXSEC#           4     5     B      -                
      >   29  ELKHORNXSEC-ID         4     5     B      -                
      >   33  DESCRIPTION          100   100     C      -                
      >
      >Description of user-defined database items in ELKHORNXSEC.AAT
      > DESCRIPTION: Cross section line name
      >
      >Unique item values for ELKHORNXSEC.AAT
      >--- DESCRIPTION --------------------
      >   cross section A-A
      >   cross section B-B
      >   cross section C-C
      >
      >
      >------------------------------------------------------------

    Entity_and_Attribute_Detail_Citation: None

Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: mailing address
        Address: U.S. Geological Survey
        Address: Information Services
        Address: Publishing Service Center
        Address: MS 902 Box 25046
        Address: Denver Federal Center
        City: Denver
        State_or_Province: CO
        Postal_Code: 80225-0046
      Contact_Voice_Telephone: 1-888-ASK-USGS
      Contact_Electronic_Mail_Address: http://ask.usgs.gov
  Resource_Description: SIM3043
  Distribution_Liability: This database has been approved for release and publication by the Director of the USGS.  Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review.  Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.  Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
      Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.  The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
      Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text.  Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ARCE,SHP
        Format_Version_Number: 9.2
        Format_Version_Date: 2005
        File_Decompression_Technique: ZIP archive
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/sim/3043/
    Fees: None

Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: mailing address
        Address: USGS Information Services
        Address: Box 25286, Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 1-303-202-4700
  Resource_Description: Scientific Investigations Map 3043 (Map-on-Demand)
  Distribution_Liability: This database has been approved for release and publication by the Director of the USGS.  Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review.  Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.  Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
      Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.  The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
      Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text.  Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.
  Standard_Order_Process:
    Non-digital_Form:
      Available as one printed sheet
      Order from USGS at address above or see
      <http://store.usgs.gov/mod/order.html>
      for more ordering information.
    Fees:
      For current prices see:
      <http://store.usgs.gov/mod/order.html>

Metadata_Reference_Information:
  Metadata_Date: 2008
  Metadata_Review_Date: 2008
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Jeremiah B. Workman
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: mailing address
        Address: U.S. Geological Survey
        Address: MS 980, Box 25046 Denver Federal Center
        City: Denver
        State_or_Province: CO
        Postal_Code: 80225-0046
      Contact_Voice_Telephone: 303-236-1257
      Contact_Electronic_Mail_Address: jworkman@usgs.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998