Raster-based regolith thickness of the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Arnold, L.R.
Publication_Date: 2010
Title:
Raster-based regolith thickness of the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 507
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Suvey
Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_regthk>
Larger_Work_Citation:
Citation_Information:
Originator: Arnold, L.R.
Publication_Date: 2010
Title:
Geographic information datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 507
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Arnold, L.R., 2010, Geographic information datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado: U.S. Geological Survey Data Series 507.
Online_Linkage: <http://pubs.usgs.gov/ds/507/>
Larger_Work_Citation:
Citation_Information:
Originator: Arnold, L.R.
Publication_Date: 2010
Title:
Hydrogeology and steady-state numerical simulation of groundwater flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Series_Information:
Series_Name: U.S. Geological Survey Scientific-Investigations Report
Issue_Identification: 2010-5082
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Arnold, L.R., 2010, Hydrogeology and steady-state numerical simulation of groundwater flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado: U.S. Geological Survey Scientific-Investigations Report 2010-5082.
Online_Linkage: <http://pubs.usgs.gov/sir/2010/5082/>
Description:
Abstract:
This dataset consists of raster-based generalized thickness of regolith (unconsolidated sediments) overlying bedrock in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado. Regolith thickness in this dataset was derived from contours presented in the dataset ds507_regthick_contours. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Geological Survey and the Lost Creek Ground Water Management District.
Purpose:
This dataset is 1 of 4 datasets (see cross references) developed in support of U.S. Geological Survey Scientific-Investigations Report 2010-5082. This dataset was created to display the generalized apparent thickness of regolith in the Lost Creek Designated Ground Water Basin in raster format.
Supplemental_Information:
The Lost Creek Designated Ground Water Basin is an alluvial valley-fill aquifer in northeastern Colorado that is an important water source for irrigation, municipal, and domestic uses.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2010
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -104.556878
East_Bounding_Coordinate: -104.178143
North_Bounding_Coordinate: 40.309268
South_Bounding_Coordinate: 39.670798
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: inlandWaters
Theme_Keyword: aquifer
Theme_Keyword: thickness
Theme_Keyword: regolith
Theme_Keyword: unconsolidated material
Place:
Place_Keyword_Thesaurus: Getty Thesaurus of Geographic Names
Place_Keyword: Lost Creek
Place_Keyword: Weld County
Place_Keyword: Adams County
Place_Keyword: Arapahoe County
Place_Keyword: Colorado
Stratum:
Stratum_Keyword_Thesaurus: Dictionary of Geologic Terms
Stratum_Keyword: groundwater
Stratum_Keyword: basin
Access_Constraints: None.
Use_Constraints: None.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: L.R. Arnold
Contact_Position: Hydrologist
Contact_Address:
Address_Type: mailing address
Address: 445 Denver Federal Center
Address: Colorado Water Science Center
Address: P.O. Box 25046, MS 415
City: Denver
State_or_Province: CO
Postal_Code: 80225-0046
Country: USA
Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)
Contact_Electronic_Mail_Address:
<http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds507_regthk>
Security_Information:
Security_Classification_System: Department of the Interior
Security_Classification: Unclassified
Security_Handling_Description: Data are published and available online.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500
Cross_Reference:
Citation_Information:
Originator: Arnold, L.R.
Publication_Date: 2010
Title:
Selected geologic data for wells and test holes in and near the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 507
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_regolith_data>
Cross_Reference:
Citation_Information:
Originator: Arnold, L.R.
Publication_Date: 2010
Title:
Contours of equal regolith thickness for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 507
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Suvey
Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_regthick_contours>
Cross_Reference:
Citation_Information:
Originator: Arnold, L.R.
Publication_Date: 2010
Title:
Selected aquifer-test and specific-capacity data for wells in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 507
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: <http://water.usgs.gov/lookup/getspatial?ds507_welltest_data>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Regolith-thickness data used as the basis for this dataset were compiled from Bjorklund and Brown (1957), Nelson, Haley, Patterson, and Quirk, Inc. (1967), HRS Water Consultants, Inc., written commun. (2006), Hurr and others (1972), Skinner (1963), and lithologic logs from wells and test holes on file with the Colorado Division of Water Resources and the U.S. Geological Survey Colorado Water Science Center. In some places, weathered bedrock may have been mapped as regolith because of inaccurate lithologic logs or an indistinct contact between regolith and the underlying bedrock. In particular, lithologic logs of deep wells completed in bedrock were used to map regolith thickness in the southern part of the Lost Creek basin where few other data were available, and regolith thickness determined from these logs might not be accurate because they commonly lacked detailed regolith information.
Raster-based thickness in this dataset was derived from contours in the dataset ds507_regthick_contours, which were drawn on the basis of information provided in the dataset ds507_regolith_data. Accuracy of regolith-thickness contours is variable and depends on the accuracy and number of data used to define the contours at a particular location. Regolith-thickness contours were drawn by using the preponderance of data in a local area and do not necessarily agree with every individual data value. Contours also do not consider local variability in regolith thickness between locations of plotted thickness data. Contours were drawn using an interval of 20 feet and are estimated to have an accuracy of about one contour interval, or 20 feet.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: variable
Attribute_Accuracy_Explanation:
Accuracy of the thickness contours used to derive raster-based thickness is estimated generally to be about one contour interval, or 20 feet.
Logical_Consistency_Report:
Raster-based regolith thickness was generated using a tool that processed thickness information in a standard, homogeneous fashion from contour lines. Contours used to generate this grid were consistent in meaning across the dataset and were generated by a single individual to ensure data consistency over its entire extent.
Completeness_Report:
Regolith-thickness contours were drawn by hand in the ArcMap editing environment. Hand contouring was used to better interpret the varied and inconsistent data values that sometimes resulted from local irregularities in the bedrock surface, the imprecise bedrock contact, mislocated data points, or conflicting data. Regolith-thickness data were contoured with consideration of apparent data quality, topography, lithology, surface geology, and knowledge of likely depositional and erosional processes leading to the formation of the Lost Creek alluvial valley. In areas where regolith-thickness data were unavailable, the geologic and bedrock contour map by Nelson, Haley, Patterson, and Quirk (1967, plate 2) was used to estimate regolith thickness.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal accuracy of the thickness contours used to derive the this grid is variable because of the nature of visually interpreting and interpolating distances between thickness values at data points. In areas where many data were available for contouring, horizontal accuracy is estimated generally as better than about 1,300 feet, or the approximate width of one quarter-quarter section. In areas where few data were available for contouring, horizontal accuracy is estimated generally as better than about 2,600 feet, or the approximate width of one quarter section.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 1,300
Horizontal_Positional_Accuracy_Explanation:
Horizontal contour error is estimated on the basis of potential error in data locations and values used to draw contours.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Not applicable.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 0
Vertical_Positional_Accuracy_Explanation:
0 used as placeholder for null - vertical accuracy is not applicable for this dataset.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1957
Title:
Geology and ground-water resources of the lower South Platte River valley between Hardin, Colorado, and Paxton, Nebraska
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: U.S. Geological Survey Water-Supply Paper
Issue_Identification: 1378
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Bjorklund, L.J., and Brown, R.F., 1957, Geology and ground-water resources of the lower South Platte River valley between Hardin, Colorado, and Paxton, Nebraska: U.S. Geological Survey Water-Supply Paper 1378, 431 p., 4 pls.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1957
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: Bjorklund&Brown, 1957
Source_Contribution: Source of well locations and lithologic information.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Nelson, Haley, Patterson, and Quirk, Inc.
Publication_Date: 1967
Title:
Ground water resources of the Lost Creek drainage basin, Weld, Adams, and Arapahoe Counties, Colorado
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: none
Issue_Identification: none
Publication_Information:
Publication_Place: unpublished
Publisher: unpublished
Other_Citation_Details:
Nelson, Haley, Patterson, and Quirk, Inc., 1967, Ground water resources of the Lost Creek drainage basin, Weld, Adams, and Arapahoe Counties, Colorado: Report prepared for the Colorado Ground Water Commission, 32 p., 3 pls.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1967
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: NHPQ, 1967
Source_Contribution: Source of well locations and lithologic information.
Source_Information:
Source_Citation:
Citation_Information:
Originator: HRS Water Consultants, Inc.
Publication_Date: 2006
Title: HRS Water Consultants, Inc., written communication
Series_Information:
Series_Name: none
Issue_Identification: none
Publication_Information:
Publication_Place: unpublished
Publisher: unpublished
Other_Citation_Details: HRS Water Consultants, Inc., written commun. (2006)
Type_of_Source_Media: written communication
Source_Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 1997
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: HRS, 2006
Source_Contribution: Well locations and lithologic information.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1972
Title:
Hydrogeologic characteristics of the valley-fill aquifer in the Weldona reach of the South Platte River valley, Colorado
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 73-127
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Hurr, R.T., Schneider, P.A., Jr., and others, 1972, Hydrogeologic characteristics of the valley-fill aquifer in the Weldona reach of the South Platte River valley, Colorado: U.S. Geological Survey Open-File Report 73-127, 2 p. 6 pl.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1972
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: Hurr and others, 1972
Source_Contribution: Source of well locations and lithologic information.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Colorado Agricultural Experiment Station
Publication_Date: 1963
Title:
Artificial ground-water recharge in the Prospect Valley area, Colorado
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: General Series
Issue_Identification: 792
Publication_Information:
Publication_Place: Fort Collins
Publisher: Colorado Agricultural Experiment Station
Other_Citation_Details:
Skinner, M.M., 1963, Artificial ground-water recharge in the Prospect Valley area, Colorado: Colorado Agricultural Experiment Station General Series 792, 89 p.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1963
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: Skinner, 1963
Source_Contribution: Source of well locations and lithologic information.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Colorado Division of Water Resources
Publication_Date: unpublished material
Title: Colorado Division of Water Resources well-permit database
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: none
Issue_Identification: none
Publication_Information:
Publication_Place: unpublished publicly available data
Publisher: unpublished publicly available data
Other_Citation_Details: Colorado Division of Water Resources well-permit database.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2009
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: CDWR
Source_Contribution: Source of well locations and lithologic information.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unknown
Title: U.S. Geological Survey well records
Series_Information:
Series_Name: none
Issue_Identification: none
Publication_Information:
Publication_Place: unpublished publicly available data
Publisher: unpublished publicly available data
Other_Citation_Details:
U.S. Geological Survey well records, available from the Colorado Water Science Center. Some data from these records are published online.
Online_Linkage: <http://co.water.usgs.gov/Website/projects/viewer.htm>
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2009
Source_Currentness_Reference: geologic condition
Source_Citation_Abbreviation: USGS
Source_Contribution: Source of well locations and lithologic information.
Process_Step:
Process_Description:
Dataset ds507_regolith_data was prepared. Data were manually digitized (on-screen) in the ArcMap editing environment based on location information provided by the original data source using, as a backdrop, 1:24,000 digital raster graphic topographic maps.
The following attributes were added to the point dataset: WELL_ID, LOCATION, LAND_ALT, THICKNESS, THICK_QLFR, BR_ALT, BR_QLFR, REMARK, and SOURCE. Regolith-thickness data were compiled from published sources, consultant reports, and lithologic logs of wells and test holes on file with the Colorado Division of Water Resources and the U.S. Geological Survey Colorado Water Science Center.
Source_Used_Citation_Abbreviation: Bjorklund&Brown, 1957
Source_Used_Citation_Abbreviation: NHPQ, 1967
Source_Used_Citation_Abbreviation: HRS, 2006
Source_Used_Citation_Abbreviation: Hurr and others, 1972
Source_Used_Citation_Abbreviation: Skinner, 1963
Source_Used_Citation_Abbreviation: CDWR
Source_Used_Citation_Abbreviation: USGS
Process_Date: 20091020
Process_Step:
Process_Description:
Contours of regolith thickness (ds507_regthick_contours) from which the grid is derived were hand contoured on the basis of information in the regolith_data.shp, specifically from the THICKNESS field. Hand contouring was done in the ArcMap editing environment to interpolate contour lines between the data points. Contours were drawn using a preponderance of local information from data points and do not necessarily agree with every individual data value. The contour interval used was 20 feet. Where regolith-thickness data were unavailable, the geologic and bedrock contour map by Nelson, Haley, Patterson, and Quirk (1967, plate 2) was used to estimate regolith thickness and to derive contours.
Process_Date: 20091022
Process_Time: 10314500
Process_Step:
Process_Description:
Raster-based regolith thickness was generated from the dataset ds507_regthick_contours by using the Topo to Raster tool in ArcToolbox (Spatial Analyst Tools -> Interpolation -> Topo to Raster).
Process_Date: 20091022
Process_Time: 11450700
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: T:\Temp\xml9D.tmp
Process_Date: 20100609
Process_Time: 14463100
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: T:\Temp\xml2A.tmp
Process_Date: 20100916
Process_Time: 12325000
Cloud_Cover: 0

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 557
Column_Count: 251
Vertical_Count: 1

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 13
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -105.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 126.827698
Ordinate_Resolution: 126.827698
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: National Geodetic Vertical Datum of 1929
Altitude_Resolution: 1
Altitude_Distance_Units: feet
Altitude_Encoding_Method: Implicit coordinate

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: ds507_regthk
Entity_Type_Definition: grid
Entity_Type_Definition_Source: USGS
Overview_Description:
Entity_and_Attribute_Overview:
Because the grid is a floating-point grid, there are no tabular attributes exposed to the user. Internal attributes stored in the dataset consist of thickness of regolith (unconsolidated sediment), in feet.
Entity_and_Attribute_Detail_Citation:
Arnold, L.R., 2010, Geographic information datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado: U.S. Geological Survey Data Series 507.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ask USGS
Contact_Organization: U.S. Geological Survey
Contact_Position: Water Webserver Team
Contact_Address:
Address_Type: mailing address
Address: 445 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)
Contact_Electronic_Mail_Address:
<http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds507_regthk>
Resource_Description: Downloadable Data
Distribution_Liability:
Although this dataset has been made publicly available by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CDF
Format_Version_Number: ArcGIS 9.2
Format_Specification: shapefile
File_Decompression_Technique: no compression applied
Transfer_Size: 0.591
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://water.usgs.gov/GIS/dsdl/ds507_regthk.zip>
Online_Computer_and_Operating_System: NA
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ISO-9660
Fees: None. This dataset is provided by USGS as a public service.
Ordering_Instructions: <http://ask.usgs.gov/>
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2010

Metadata_Reference_Information:
Metadata_Date: 20100717
Metadata_Review_Date: 20090931
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Ask USGS
Contact_Position: Water Webserver Team
Contact_Address:
Address_Type: mailing address
Address: 445 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)
Contact_Electronic_Mail_Address:
<http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ds507_regthk>
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.9.6 on Thu Sep 16 12:41:50 2010