Metadata: Identification_Information: Citation: Citation_Information: Originator: Gregory J. Walsh Originator: Stewart F. Clark, Jr. Publication_Date: 1999 Title: Bedrock Geologic Map of the Windham Quadrangle, Rockingham and Hillsborough Counties, New Hampshire: Line coverage for topography Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 99-8 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/1999/of99-8/ Other_Citation_Details: scale 1:24,000 Description: Abstract: Line coverage for topography. Not attributed for elevation. Designed for use as a base map. The geologic data was mapped during the summer of 1998 at a scale of 1:24,000. The bedrock geology was mapped using standard techniques. Locational information was provided by Rockwell PLGR+96 GPS receivers using the federal precise positioning service. The line and polygon data were compiled on a mylar greenline of the 7.5-minute quadrangle and scanned at 400 dpi on an Anatech Eagle 4080T scanner. The raster files (TIF) were converted to vector files (DXF) using GTX OSR version 2.0 raster-to-vector conversion software. The vector files were imported to Arc/Info version 7.0.4. Point data were collected with GPS and hand held 3COM Palm Pilot III PDA computers. Data from the PDAs were combined in Microsoft Access, and then imported as ASCII text files and (dbf) files into Arc/Info. The Arc/Info coverages were registered and transformed to the New Hampshire State Plane Coordinate system. The topography was obtained from a photographic negative separate of contour lines from the Windham, NH (1953 edition) U.S.G.S. 7.5 minute topographic quadrangle. The negative was scanned on the Anatech scanner at 400 dpi. Purpose: The map was published as part of a study of the fractured bedrock aquifers in the state of New Hampshire. The digital data are intended for use by all government, academic, commercial, or other agencies in need of digital geologic map information. Not intended for use at scales larger than 1:24,000. Supplemental_Information: The geology dataset was printed and visually reviewed by the map authors and other USGS staff for geologic integrity, completeness, and accuracy of linework. The report received a standard internal peer review as per USGS Open-File Reports. Access_Constraints: Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness or any information, apparatus, product or process disclosed in this report, or represents that its use would not infringe privately owned rights. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the USGS in the use of this data, or related materials. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. This geologic map is a guide to the bedrock geology at 1:24,000 scale, but it is not a substitute for site specific data. Status: Progress: completed Maintenance_and_Update_Frequency: Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.37510681 East_Bounding_Coordinate: -71.24988556 North_Bounding_Coordinate: 42.87508774 South_Bounding_Coordinate: 42.74996948 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: topography Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: none Place_Keyword: 7.5-minute Windham quadrangle, New Hampshire Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f33015 = Rockingham Native_Data_Set_Environment: dgux UNIX, ARC/INFO version 7.0.4 Cross_Reference: Citation_Information: Originator: Gregory J. Walsh Originator: Stewart F. Clark, Jr. Publication_Date: 1999 Publication_Time: Title: Bedrock Geologic Map of the Windham Quadrangle, New Hampshire Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 99-8 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/1999/of99-8/ Data_Quality_Information: Logical_Consistency_Report: Chain-node topology present. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 6087 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6,378,206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: TOPO.AAT Entity_Type_Definition: arc attribute table for topography Entity_Type_Definition_Source: authors, compiled from USGS photo separate of topo from 1953 edition quad. Distribution_Information: Standard_Order_Process: Digital_Form: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/1999/of99-8/of998.tar.gz Metadata_Reference_Information: Metadata_Date: 20160614 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Midwest Area Contact_Position: Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/ Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998