Identification_Information:
  Citation:
    Citation_Information:
      Originator: George H. Billingsley
      Originator: Debra Block
      Originator: Margaret Hiza Redsteer
      Publication_Date: 2013
      Title: Geologic Map of the Eastern Quarter of the Flagstaff 30' x 60' Quadrangle, Coconino County, Northern Arizona
      Edition: 1.0
      Geospatial_Data_Presentation_Form: vector digital data
      Series_Information:
        Series_Name: U.S. Geological Survey Scientific Investigations Map
        Issue_Identification: SIM 3279
      Publication_Information:
        Publication_Place: Flagstaff, Arizona
        Publisher: U.S. Geological Survey
      Online_Linkage: http://pubs.usgs.gov/sim/3279 or http://dx.doi.org/10.3133/sim3279/
  Description:
    Abstract:
      This digital map database represents the general distribution of bedrock and surficial deposits in the eastern quarter of the Flagstaff 30' x 60' quadrangle. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The map is bounded by longitude 111¡ to 111¡15' W., and latitude 35¡ to 35¡30' N. Field work on the Navajo Nation was conducted under a permit from the Navajo Nation Minerals Department. Any persons wishing to conduct geologic investigations on the Navajo Nation must first apply for, and receive, a permit from the Navajo Nation Minerals Department, P.O. Box 1910, Window Rock, Arizona 86515, telephone (928) 871-6587.   
    Purpose: 
      The geologic map of the eastern quarter of the Flagstaff quadrangle was prepared by the USGS Navajo Land Use Planning Project in cooperation with the Navajo Nation and funded through the USGS National Cooperative Geologic Mapping Program to provide connectivity to the regional geologic framework of the Grand Canyon area of northern Arizona. This map will benefit local, state, federal, tribal, and private resource managers who direct environmental and land management programs such as range management, plant and animal studies, flood control, water resource investigations, and natural hazards associated with sand dune mobility. The geologic information will support ongoing and future geologic investigations and associated scientific studies within the Flagstaff quadrangle.
	Supplemental_Information:
      The native data structure is an ESRI personal geodatabase (.mdb). Feature class representations control map symbology and store symbology rules inside the geodatabase. 
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2010-2012
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: none
      Theme_Keyword: geologic map
    Place:
      Place_Keyword_Thesaurus: none
      Place_Keyword: Flagstaff
      Place_Keyword: Navajo Nation
      Place_Keyword: Colorado Plateau
      Place_Keyword: Coconino County
      Place_Keyword: Navajo County
      Place_Keyword: Arizona
  Access_Constraints: None
  Use_Constraints: Not for use at scales greater than 1:24,000. Any derivative products utilizing these datasets shall clearly indicate their source. If users modify the data in any way they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these datasets, nor to imply that changes they made were approved by the U.S. Geological Survey.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: George H. Billingsley
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Research Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 2255 N. Gemini Dr.
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: USA
      Contact_Voice_Telephone: 928-556-7198
      Contact_Facsimile_Telephone: 928-556-7169
      Contact_Electronic_Mail_Address: gbillingsley@usgs.gov
  Data_Set_Credit: This digital database was prepared by George Billingsley and Debra Block. Technical reviews were provided by Lee Amoroso of the U.S. Geological Survey and Wendell Duffield of Northern Arizona University. Digital review was provided by Sue Priest of the U.S. Geological Survey. Prepared in cooperation with the Navajo Nation.
  Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.5.4400
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: The geodatabase was checked for polygon adjacency. Validation tests determined that lines attributed as 'Contact' do not separate equivalent map units and lines attributed as 'Fault - Concealed' do not separate different map units.
  Logical_Consistency_Report: Topological integrity of the data is maintained in the geodatabase by the following rules:  geologic lines 1) must not self-overlap, 2) must not self-intersect, 3) must not have pseudonodes, 4) must not intersect or touch interior, 5) must be single part, and 6) must not have dangles [excepting faults]; geologic polygons 1) must not overlap, 2) must not have gaps, and 3) boundary must be covered by [geologic lines].  These topological relationships reflect the geometric relationship of geologic entities. Each line segment has a length and directionality that is appropriate for the geologic feature it depicts.
  Completeness_Report: This report is designed to describe completely the surficial and bedrock geology at a 1:24,000 scale.  Geologic information only mappable at a larger scale has been omitted. All geospatial database elements are attributed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Geologic lines and points on 1:100,000 scale geologic maps are judged to meet map-accuracy standards if they are located to within +/-50 meters, relative to topographic or cultural features on the base map. However, since initial mapping utilized larger scale base maps, the horizontal positional accuracy is determined to be within +/- 15 meters on the ground.
  Lineage:
    Process_Step:
      Process_Description:
        The Geologic Map of the Eastern Quarter of the Flagstaff quadrangle was produced by stereoscopic analysis of aerial photographs, augmented by extensive field checking. Primary resources include color aerial photographs flown in 2005 at the 1:40,000-scale and imagery from the National Agriculture Imagery Program (NAIP) flown in 2010. The geologic linework originally was compiled onto 1:24,000-scale paper USGS topographic maps. The 8 draft paper maps were scanned and georeferenced to the corresponding 7.5' topographic map digital raster graphic (DRG) in ArcGIS. Geologic features were digitized and symbolized from the field sheets and the NAIP imagery. Additional field checks were performed where needed.

        Many of the Quaternary alluvial and eolian deposits have similar lithologic and geomorphic characteristics and were mapped almost entirely by photogeologic methods. Lithology, stratigraphic position, and the amount of erosional degradation were used to determine relative age correlations of alluvial deposits. Geologic map units and structural features were field checked to ensure accuracy of location and description. Surficial unit contacts that are adjacent to alluvial, eolian, and bedrock map units are approximate.   
          
        The channel of the Little Colorado River was mapped from 2010 NAIP imagery. The present-day (2010) river channel morphology does not match that depicted on the 1969 topographic base maps because of changing geomorphic conditions of the Little Colorado River.
Entity_and_Attribute_Information:
  Overview_Description:
    Entity_and_Attribute_Overview:
      This geodatabase contains the feature dataset 'geo' which contains line and polygon feature classes that collectively define the geologic units. Additional feature classes within the geodatabase contain volcanic, karst, and geologic structure data. Each feature class has a corresponding metadata report that should be referred to for additional Spatial Reference, and Entity and Attribute information.

      This geodatabase, SIM3279.mdb, includes the following:

      geo (feature dataset)
      SIM3279_line (feature class containing geologic contacts and faults)
      SIM3279_poly (feature class containing geologic unit polygons)
      SIM3279_overlay (feature class containing geologic unit polygon patterns)

      SIM3279_atd (feature class containing geologic structure data)
      SIM3279_fold (feature class containing fold axes)
      SIM3279_gln (feature class containing fractures)
      SIM3279_kar (feature class containing karst data)
      SIM3279_vpf (feature class containing volcanic point data)

      SIM3279_DRG24k (raster catalog of topographic base maps)
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey Information Services
      Contact_Address:
        Address_Type: mailing address
        Address: Box 25286 Denver Federal Center
        City: Denver
        State_or_Province: CO
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 1-888-ASK-USGS
      Contact_Electronic_Mail_Address: ask@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability:
    The U.S. Geological Survey (USGS) provides these geographic data "as is."  The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data.  The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose.  The burden for determining fitness for use lies entirely with the user.  Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

    In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of delivery, installation, operation, or support by USGS.
  Standard_Order_Process:
    Fees: None
Metadata_Reference_Information:
  Metadata_Date: 20131028
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Debra Block
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 2255 N. Gemini Dr.
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: USA
      Contact_Voice_Telephone: 928-556-7138
      Contact_Facsimile_Telephone: 928-556-7169
      Contact_Electronic_Mail_Address: dblock@usgs.gov
  Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Access_Constraints: None
  Metadata_Use_Constraints: None
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile