Metadata: Identification_Information: Citation: Citation_Information: Originator: Gregory N. Green Originator: Bradley S. Van Gosen Originator: Anna B. Wilson Originator: Jeffery T. Silkwood Publication_Date: 1999 Title: Geologic map datasets of the Custer and Gallatin National Forests of South-central Montana, in ARC/INFO format Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open File Report Issue_Identification: OFR 99-450 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-99-0450 Description: Abstract: The geology of western and northern Gallatin National Forest was mapped in two parts as part of an evaluation of its mineral resource potential by the USGS. Previously, the western part was released as Map A and the northern part as Map B of USGS Geologic Investigations Series Map I-2584. These maps were compiled, digitized, and produced using the USGS software program GSMAP. All the original source maps were simplified on mylar overlays, digitized at their original map scales and projections, and then merged into the final maps. After editing, the digital maps were filtered to remove all points not necessary for improving resolution at a scale of 1:126,720 (2 mi per in., the scale used by the USDA Forest Service). For purposes of resource assessment, many rock units have been combined on these maps. For details, the user should consult the original source maps. Purpose: This ARC/INFO dataset was developed to provide a geologic map GIS database of the northern parts (Map B) of the Gallatin National Forest for use in spatial analysis by a variety of users. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -111.15 East_Bounding_Coordinate: -110.15 North_Bounding_Coordinate: 46.3 South_Bounding_Coordinate: 45.66 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geology Place: Place_Keyword_Thesaurus: none Place_Keyword: Gallatin National Forest Place_Keyword: Bridger Range Place_Keyword: Crazy Mountains Place_Keyword: Gallatin County Place_Keyword: Sweet Grass County Place_Keyword: Park County Place_Keyword: Meagher County Place_Keyword: Montana Place_Keyword: USA Access_Constraints: none Use_Constraints: This database is not meant to be used or displayed at any scale other than 1:126,720. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Anna B. Wilson Contact_Organization: U.S. Geological Survey Contact_Position: geologist Contact_Address: Address_Type: mailing address Address: USGS, Box 25046, MS 905, Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 236-5593 Contact_Electronic_Mail_Address: awilson@usgs.gov Data_Set_Credit: Gregory N. Green, Anna B. Wilson, and Bradley S. Van Gosen of the U.S. Geological Survey and Jeffrey T. Silkwood of the USDA Forest Service Native_Data_Set_Environment: SunOS, 5.5.1, sun4u UNIX ARC/INFO version 7.1.1 Data_Quality_Information: Completeness_Report: finished Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Wilson, A.B., and Elliott, J.E. Publication_Date: 1997 Title: Geologic maps of western and northern parts of Gallatin National Forest, south-central Montana Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Geologic Investigations Series Issue_Identification: Map I-2584 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Source_Scale_Denominator: 126,720 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Geology of Gallatin National Forest, Wilson and Elliott, 1997 Source_Contribution: New and compiled geologic mapping Process_Step: Process_Description: The original GSMAP/GSMCAD files used to create Map B of USGS Geologic Investigations Series Map I-2584 were exported through GSMCAD to DXF format. G.N. Green converted the files to ARC/INFO format, reattributed the digital linework and polygons in ARC/INFO, checked the line and polygon attributes against the original and corrected them to match the published paper map. Shadeset and lineset attributes were added in ARC. This ARC database was further edited by G.N. Green to correct minor deviations from the published map. The digital database was quality checked against original materials by Anna Wilson, Bradley Van Gosen, and Melissa Crane. Process_Date: 1999 Logical_Consistency_Report: manual check against orginals Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Universal_Transverse_Mercator: UTM_Zone_Number: 12 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 1 Longitude_of_Central_Meridian: -111.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 0 False_Northing: 0 Grid_Coordinate_System_Name: Universal Transverse Mercator Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1 Ordinate_Resolution: 1 Planar_Distance_Units: Meters 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: formation name and line type Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Position: Database Administrator Contact_Address: Address_Type: mailing address Address: USGS, Box 25046, MS 905, Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 236-5593 Contact_Electronic_Mail_Address: awilson@usgs.gov Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standard nor with the North American stratigraphic codes. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:126,720. Resource_Description: USGS Open-File Report 99-450 Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARC/INFO export Format_Version_Number: 7.1.2 Format_Information_Content: Geologic map of northern Gallatin National Forest, south-central Montana File_Decompression_Technique: No compression applied Transfer_Size: 77 Mbyte Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-99-0450 Access_Instructions: Anonymous FTP Fees: none Metadata_Reference_Information: Metadata_Date: 19990429 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Anna B. Wilson Contact_Address: Address_Type: mailing address Address: USGS, Box 25046, MS 905, Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 236-5593 Contact_Electronic_Mail_Address: awilson@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: Version of June 8, 1994