Identification_Information: Citation: Citation_Information: Originator: David S. Fullerton (ed.) Originator: Edward V. Sado (comp.) Originator: David S. Fullerton (comp.) Originator: C.L. Baker (comp.) Originator: William R. Farrand (comp.) Publication_Date: 2004 Title: Quaternary Geologic Map of the Sudbury 4° x 6° Quadrangle, United States and Canada Edition: 1.1 Geospatial_Data_Presentation_Form: (map) Series_Information: Series_Name: Miscellaneous Investigations series Issue_Identification: I-1420 (NL-17) Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1993 Title: Quaternary geologic atlas of the United States Geospatial_Data_Presentation_Form: (map) Series_Information: Series_Name: Miscellaneous Investigations Series Issue_Identification: I-1420 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Description: Abstract: The Quaternary Geologic Map of the Sudbury 4° x 6° Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the earth. They make up the "ground" on which we walk, the "dirt" in which we dig foundations, and the "soil" in which we grow crops. Most of our human activity is related in one way or another to these surface materials that are referred to collectively by many geologists as regolith, the mantle of fragmental and generally unconsolidated material that overlies the bedrock foundation of the continent. The maps were compiled at 1:1,000,000 scale. Purpose: In recent years, surficial deposits and materials have become the focus of much interest by scientists, environmentalists, governmental agencies, and the general public. They are the foundations of ecosystems, the materials that support plant growth and animal habitat, and the materials through which travels much of the water required for our agriculture, our industry, and our general well being. They also are materials that easily can become contaminated by pesticides, fertilizers, and toxic wastes. In this context, the value of the surficial geologic map is evident. Supplemental_Information: This map is a product of collaboration of the Ontario Geological Survey, the University of Michigan, and the U.S. Geological Survey and is designed for both scientific and practical purposes. It was prepared in two stages. First, separate maps and map explanations were prepared by the compilers. Second, the maps were combined, integrated, and supplemented by the editor. Map unit symbols were revised to a uniform system of classification, and map unit descriptions were prepared by the editor from information received from the compilers and from additional sources. Diagrams accompanying the map were prepared by the editor. For scientific purposes, the map differentiates Quaternary surficial deposits on the basis of lithology or composition, texture or particle size, structure, and genesis; stratigraphic relationships; engineering geologic properties; and relative age, as shown on the correlation diagram and indicated in the description of map units. Deposits of some constructional geomorphic features, such as end moraines, are distinguished as map units. Deposits of erosional landforms, such as stream terraces, are not distinguished, although alluvial deposits that are mapped may be terraced. As a Quaternary geologic map, it serves as a base from which a variety of maps relating Quaternary geologic history can be derived. For practical purposes, the map is a surficial materials map. Materials are distinguished on the basis of lithology or composition, texture or particle size, and other physical, chemical, and engineering characteristics. It is not a map of soils recognized and classified in pedology or agronomy. Rather, it is a generalized map of soils as recognized in engineering geology, or of substrata or parent materials in which pedologic and agronomic soils are formed. As a materials map, it serves as a base from which a variety of maps for use in planning engineering, land use, or land management projects can be derived. A major regional glacial readvance in the Lake Superior basin west of the northwest quarter of this quadrangle (the Marquette advance) culminated approximately 10,000 yr B.P., synchronous with the arbitrarily defined Pleistocene-Holocene boundary of Hopkins (1975). Deposits of the advance in northern Michigan, in the adjacent Lake Superior 4° x 6° quadrangle (Farrand and others, 1984), were not distinguished as map units or by a glacial readvance symbol. Deposits of the Marquette advance in Michigan, represented by an advance limit and two recessional ice margin positions, subsequently were traced eastward to Whitefish Bay in the southeastern end of Lake Superior (Drexler and others, 1983; Farrand and Drexler, 1985). Three east-west- trending belts of kame moraine deposits between lat 46°30' and 47° N. in this quadrangle, traced from Whitefish Bay to Capreol, Ont., by Boissoneau (1965, 1968), are aligned with the trends of the three Marquette ice margin positions in Michigan. It is possible that those belts of kame moraine deposits are products of the Marquette glacial readvance. If so, all till and other sediments deposited prior to formation of the southernmost belt of kame moraine are Pleistocene (late Wisconsin) in age and all till and other sediments that were deposited during and after recession of the ice margin from the readvance limit are Holocene in age. The digital file was prepared at 1:1,000,000 nominal viewing scale. If the map is enlarged to larger scales (for example, 1:250,000, 1:100,000, or 1:24,000 scale), resolution of the map data is greatly diminished. Enlargement will not restore resolution that was lost by simplification or generalization of data. This database represents an attempt to digitally capture all the geologic information available on the published paper map. Separate coverages are provided for the map unit polygons, linear glacial features, point data for drumlins, and line coverages for the hydrology and topography. The description of map units and sources of information are both included as PDF files. The published maps of the Quaternary Geologic Atlas of the United States used three separate projections. To promote uniformity, the projection of this database was changed from Lambert Conformal Conic to Albers Equal Area and all subsequent digital databases will similarly be changed to Albers Equal Area Projection. Illustrations are provided showing areas of responsibility for the compilation of the map and showing the correlation of map units. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee- compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file includes some ArcInfo-specific terminology. >The dataset for the Sudbury quadrangle consists of 10 coverages. > geo_net > gla_lin > gla_pnt > hydr_lin > topo_lin > bnd_lin > bnd_net > rd_lin > rr_lin > grid_lin > The dataset also includes an ArcInfo AML, lineset, shadeset, and markerset that will produce the EPS file of the geology and glacial features and the list of map units. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1979 Ending_Date: 1990 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -84.00 East_Bounding_Coordinate: -78.00 North_Bounding_Coordinate: 48.00 South_Bounding_Coordinate: 44.00 Keywords: Theme: Theme_Keyword_Thesaurus: American Geological Institute (AGI) Glossary of Geology Theme_Keyword: Alluvium Theme_Keyword: Beach deposits Theme_Keyword: Coastal deposits Theme_Keyword: Colluvium Theme_Keyword: Delta Theme_Keyword: Drumlin Theme_Keyword: Dune Theme_Keyword: Eolian deposits Theme_Keyword: Esker Theme_Keyword: Genesis Theme_Keyword: Geologic history Theme_Keyword: Geologic map Theme_Keyword: Geology Theme_Keyword: Glacial deposits Theme_Keyword: Glacial limits Theme_Keyword: Holocene Theme_Keyword: Ice-contact deposits Theme_Keyword: Ice-molded landforms Theme_Keyword: Lacustrine deposits Theme_Keyword: Moraine Theme_Keyword: Outwash deposits Theme_Keyword: Quaternary Theme_Keyword: Quaternary geology Theme_Keyword: Regional geology Theme_Keyword: Sand deposits Theme_Keyword: Sedimentary Rocks Theme_Keyword: Surficial deposits Theme_Keyword: Surficial geology Theme_Keyword: Swamp deposits Theme_Keyword: Till Place: Place_Keyword_Thesaurus: U.S. Board on Geographic Names (BGN) Place_Keyword: Canada Place_Keyword: Great Lakes Place_Keyword: Lake Huron Place_Keyword: Michigan Place_Keyword: Ontario Place_Keyword: United States Temporal: Temporal_Keyword_Thesaurus: Richmond, G.M., and Fullerton, D.S., eds., 1986, Introduction, in Quaternary glaciations in the United States of America: Quaternary Science Reviews, v. 5. Temporal_Keyword: Holocene Temporal_Keyword: Late Wisconsin Temporal_Keyword: Pleistocene Temporal_Keyword: Pre Wisconsin Temporal_Keyword: Quaternary Access_Constraints: None Use_Constraints: Acknowledgment of the Quaternary Geologic Atlas of the United States of America and (or) the U.S. Geological Survey in products derived from these data will be appreciated. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Charles A. Bush Contact_Organization: U.S. Geological Survey Contact_Position: Emeritus Geophysicist Contact_Address: Address_Type: Mailing and physical address Address: Mail Stop 913, Box 25046, Federal Center City: Lakewood State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 236-4723 Contact_Facsimile_Telephone: (303) 236-0214 Contact_Electronic_Mail_Address: cbush@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_map_print.pdf> Browse_Graphic_File_Description: Scan of the original published paper map optimized for printing. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_map_screen.pdf> Browse_Graphic_File_Description: Scan of the original published paper map optimized for viewing on screen. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_plotfile.pdf> Browse_Graphic_File_Description: Plot of the digital files containing map units, linear and point glacial features, hydrology, topography and list of map symbols optimized for printing. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_correlation.pdf> Browse_Graphic_File_Description: Scan of correlation chart on published paper map. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_index.pdf> Browse_Graphic_File_Description: Index map showing location of Quaternary Geologic Atlas of the U.S. quadrangles and quadrangles published digitally and as paper maps. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_responsibility.pdf> Browse_Graphic_File_Description: Scan of illustration of state compilation responsibilities shown on the paper map. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nl-17_textonly.pdf> Browse_Graphic_File_Description: Text description of map units, figure captions, notes on the original map, and sources of information used in preparing the original map. Browse_Graphic_File_Type: PDF Data_Set_Credit: The Quaternary Geologic Map of the Sudbury 4 Degree x 6 Degree Quadrangle, United States and Canada, I-1420 (NL-17) was compiled by Edward V. Sado, Ontario Geological Survey, David S. Fullerton, U.S. Geological Survey, C.L. Baker, Ontario Geological Survey, and William R. Farrand, Department of Geological Sciences, University of Michigan. The state compilations were edited and integrated by David S. Fullerton, U.S. Geological Survey. The compilations of geology and glacial features were converted to digital form by Techni Graphic Systems, Inc., of Fort Collins, CO, under contract with the U.S. Geological Survey and modified by Charles A. Bush. The hydrography layer was prepared by C.E. Briles, U.S. Geological Survey. Illustrations, wordprocessor files, the topographic layer, and DLG coverages were prepared by Bush. Native_Data_Set_Environment: Windows_NT, 4.0, Intel ArcInfo version 8.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Compilation of geologic data: The accuracy of the map data is dependent on (1) the accuracy of the original source data, (2) the accuracy of transfer of that data to larger scale bases by the compilers, (3) the procedures by which the compilers and the editor/integrator simplified or generalized the data, and (4) the procedures used by, and the objectivity exercised by, the editor/integrator in integration of adjacent parts of the map that were prepared by different compilers. Consequently, aspects of accuracy for the data set cannot be quantified. Digitization and attributing of compilation: Digitizing contractor scanned source stable-base material, vectorized scan, attributed files, and produced check plots and coverages. C.A. Bush proofread check plots and reviewed digital files; made final corrections as needed; produced graphical files and imported them into graphics program to prepare plot file; proofread cartographic product; prepared illustrations and word processing files of descriptions of map units and sources of information. The original paper map was scanned and recreated as PDF files. (The original map was thoroughly reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature.) Logical_Consistency_Report: Polygon and chain-node topology are present. The ArcInfo commands BUILD and CLEAN were run to ensure the topological consistency of the data set. All polygons are labeled and were tested by using the ArcInfo command LABELERRORS. All polygons were checked for closure and intersections. Completeness_Report: These coverages contain polygons for all the map units, lines for all the contacts and glacial features, and points for all the locations of glacial lake deltas, direction of ice movement indicated by striated or grooved bedrock, and ice-molded landforms. All geologic data from the original map are expressed on this map. Any differences between elements on the original map and attributed polygons, arcs, and points in this database are inadvertent and should not be construed as deliberate alterations of the data. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The accuracy of location of polygons, lines, and points is consistent with the map scale of 1:1,000,000. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: David S. Fullerton (ed.) Originator: Edward V. Sado (comp.) Originator: David S. Fullerton (comp.) Originator: C.L. Baker (comp.) Originator: William R. Farrand (comp. Publication_Date: 1993 Title: Quaternary Geologic Map of the Sudbury 4° x 6° Quadrangle, United States Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Miscellaneous Investigations Series Issue_Identification: I-1420 (NL-17) Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 1000000 Type_of_Source_Media: mylar separates from printer's negatives for printed map Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1979 Ending_Date: 1990 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: Fullerton, 1993 Source_Contribution: Linework and point data for the data sets Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1983 Title: 1:2,000,000-scale Digital Line Graphs -Railroad, Roads, and Boundaries features Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 2000000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1972 Ending_Date: 1994 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: 2MILDLG Source_Contribution: spatial and attribute information Process_Step: Process_Description: Digitizing contractor scanned source stable-base material for geology and glacial layers, vectorized scan, converted into ArcInfo coverages and attributed files from published paper map, and produced check plots and coverages. Process_Date: 1998 Process_Step: Process_Description: Christy E. Briles, U.S. Geological Survey, scanned source stable-base material for hydrology layer, vectorized scan, and converted into ArcInfo coverage. Process_Date: 1999 Process_Step: Process_Description: Charles A. Bush, U.S. Geological Survey, scanned source stable- base material for topography layer, vectorized scan, and converted into ArcInfo coverage. Process_Date: 2002 Process_Step: Process_Description: C.A. Bush acquired U.S. Geological Survey DLG 1:2,000,000 digital data for roads, railroads, and county boundaries in the United States. Data was obtained for Michigan and clipped to cover only the area of the map. Since the files are intended only for the user's reference, and to reduce file size, all attributes were removed from the railroad coverage. All attributes were removed from the roads coverage except U.S. and State highway designations. All attributes were removed from the boundaries coverage except those containing state or county names. A coverage was created containing map boundaries and state and international boundaries. These coverages do not exactly match the base used in preparation of the original Quaternary Atlas map, but are included for the user's convenience. Process_Date: 2002 Process_Step: Process_Description: C.A. Bush created illustration of the index map on the paper map in a drawing program and changed it to reflect the status of conversion of Quaternary Geologic Atlas quadrangles to digital databases. Bush scanned original printed map and also separated state and province compilation responsibility and map unit correlation diagrams, cleaned the scans, and converted them to PDF format. Process_Date: 2002 Process_Step: Process_Description: Map unit descriptions and sources of information as given on the printed map were scanned and converted by an Optical Character Recognition computer program into text files and to PDF format(Bush). Process_Date: 2002 Process_Step: Process_Description: Coverages of geology and glacial features were checked and corrected or changed. Additional items were included in the attributes. AML's were created to plot the data. Plots were imported into graphics program to create a plotfile of the digital map (Bush). Process_Date: 2003 Process_Step: Process_Description: Illustrations and text files were checked and edited by Bush. Process_Date: 2003 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Albers Conical Equal Area Albers_Conical_Equal_Area: Standard_Parallel: 29.5 Standard_Parallel: 45.5 Longitude_of_Central_Meridian: -96 Latitude_of_Projection_Origin: 23 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 53 Ordinate_Resolution: 53 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The geo_net coverage includes polygons that are map units and open water, and arcs that are contacts, colorboundaries, and shoreline. The geo_net.pat INFO file consists of the following items: GEOCODE--Refers to the type of polygon and is one of the following: map unit symbol, "lake", or "river". AGE--Refers to the age of the map unit and is one of the following: "HOLOCENE", "HOLOCENE AND LATE WISCONSIN", or "LATE WISCONSIN". MORAINES--A modifier to the map unit indicating that the unit is a moraine and is one of the following: "Ground Moraine", "End Moraine", or "Ground Moraine and end moraine", "Ground moraine under Lake Huron", or "Ground moraine under Lake Huron (late Wisconsin only)". MAPUNITS--A description of the deposits and materials that make up the map units (see below). MODIFIER--Contains the names of identified lakes or indicates if the unit is under water ("submerged"). COLOR--An integer value representing a shade pattern in the shadeset color524.shd used in preparing the plotfile of the map. Items in geo_net.pat are defined as follows: >GEOCODE; MAPUNITS; AGE; MORAINES (where applicable) > >lm; LAKE CLAY AND SILT UNDER LAKE HURON; HOLOCENE >ls; LAKE SAND AND GRAVEL UNDER LAKE HURON; HOLOCENE >ed; DUNE SAND; HOLOCENE > >ts; SANDY TILL; HOLOCENE AND LATE WISCONSIN; Ground moraine and > end moraine >tsr; SANDY TILL; HOLOCENE AND LATE WISCONSIN; Discontinuous sandy till >ts; SANDY TILL; HOLOCENE AND LATE WISCONSIN; Ground moraine under > Lake Huron (late Wisconsin only) >ke; KAME MORAINE DEPOSIT; HOLOCENE AND LATE WISCONSIN >kg; ICE-CONTACT SAND AND GRAVEL; HOLOCENE AND LATE WISCONSIN >gg; OUTWASH SAND AND GRAVEL; HOLOCENE AND LATE WISCONSIN >al; ALLUVIUM; HOLOCENE AND LATE WISCONSIN >lc; LAKE SILT AND CLAY UNDER LAKE HURON; HOLOCENE AND LATE WISCONSIN >lca; LAKE SILT AND CLAY; HOLOCENE AND LATE WISCONSIN >lcr; DISCONTINUOUS LAKE SILT AND CLAY; HOLOCENE AND LATE WISCONSIN >lsa; LAKE SAND AND GRAVEL; HOLOCENE AND LATE WISCONSIN >lsr; DISCONTINUOUS LAKE SAND AND GRAVEL; HOLOCENE AND LATE WISCONSIN >lu; LAKE CLAY, SILT, SAND, AND GRAVEL, HOLOCENE AND LATE WISCONSIN >lur; DISCONTINUOUS LAKE CLAY, SILT, SAND, AND GRAVEL; HOLOCENE AND > LATE WISCONSIN >hp; PEAT AND MUCK; HOLOCENE AND LATE WISCONSIN >hs; SWAMP DEPOSIT; HOLOCENE AND LATE WISCONSIN > > Tills in Michigan >tc; CLAYEY TILL; LATE WISCONSIN; Ground moraine >tc; CLAYEY TILL; LATE WISCONSIN; End moraine >tl; LOAMY TILL; LATE WISCONSIN; Ground moraine >tl; LOAMY TILL; LATE WISCONSIN; Ground moraine under Lake Huron >tl; LOAMY TILL; LATE WISCONSIN; End moraine >td; SANDY LOAMY TILL; LATE WISCONSIN; Ground moraine >td; SANDY LOAMY TILL; LATE WISCONSIN; Ground moraine under Lake Huron >td; SANDY LOAMY TILL; LATE WISCONSIN; End moraine >tdr; SANDY LOAMY TILL; LATE WISCONSIN; Discontinuous sandy loamy till > > Tills in Ontario >tak; CLAYEY TILL (St. Joseph Till); LATE WISCONSIN; Ground moraine > and end moraine >tak; CLAYEY TILL (St. Joseph Till); LATE WISCONSIN; Ground moraine > under Lake Huron >tap; CLAYEY TILL (Kettleby Till and unnamed till); LATE WISCONSIN >tkq; LOAMY TILL; LATE WISCONSIN >tka; LOAMY TILL (Halton Till); LATE WISCONSIN >tkg; LOAMY TILL (Rannoch Till); LATE WISCONSIN >tkn; LOAMY TILL (Elma Till); LATE WISCONSIN >tko; LOAMY TILL (Tavistock Till); LATE WISCONSIN >tki; LOAMY TILL (Catfish Creek Till); LATE WISCONSIN >teb; SANDY LOAMY TILL (Newmarket Till and unnamed till); LATE WISCONSIN; > Ground moraine and end moraine >teb; SANDY LOAMY TILL (Newmarket Till and unnamed till); LATE WISCONSIN; > Ground moraine under Lake Huron >ter; SANDY LOAMY TILL (Newmarket Till and unnamed till); LATE WISCONSIN; > Discontinuous sandy loamy till >tsa; SANDY TILL; LATE WISCONSIN >ks; ICE-CONTACT SAND, LATE WISCONSIN >gs; OUTWASH SAND; LATE WISCONSIN >gkl; OUTWASH SAND AND GRAVEL; LATE WISCONSIN >lake >river > The geo_net.aat INFO file consists of the following item: LTYPE--Refers to the type of arc and is one of the following: "contact," "shoreline," "null" (the imaginary line where the Ottawa River becomes Lake Timiskaming), or "map boundary." The gla_lin coverage contains lines of linear glacial features. The gla_lin.aat INFO file consists of the following items: TYPE--Refers to the type of glacial feature described by the arc and is one of the following: "esker," "limit of glacial advance," "glacial lake spillway," "crest of end moraine", or "map boundary". MODIFIER--Refers only to type = "glacial lake spillway" and is either "left bank" or "right bank". ACCURACY--Refers to accuracy of location of arcs in the gla_lin coverage and is either "certain" or "inferred". The gla_pnt coverage contains points that represent glacial features. The gla_pnt.pat INFO file consists of the following items: TYPE--Refers to the type of feature shown at the point and is one of the following: "direction of ice movement", "dune", "glacial lake delta," or "ice molded landform". ANGLE--Refers to the direction of drumlin or ice movement; in degrees measured clockwise from north. MRKANGLE--Negative of ANGLE; useful for plotting symbols in ARCPLOT. Hydr_lin is a line coverage created after scanning the hydrographic layer that was used in the original paper map. It has no attributes. Topo_lin is a line coverage created after scanning the topographic layer that was used in the original paper map. It has no attributes. Bnd_lin is a line coverage created from 1:2,000,000-scale U.S. Geological Survey Digital Line Graph coverages (DLG) and the original map. It contains lines representing state boundaries. The bnd_lin.aat INFO file contains the following item: LTYPE--Refers to the type of line and contains the values: "international boundary", "province boundary", or "map boundary". The coverage is annotated with state, country and province names along boundaries. Bnd_net is a polygon coverage created from 1:2,000,000-scale DLG coverages of the United States and contains political and administrative boundaries. Polygons are attributed in the standard DLG coding scheme and the Federal Information Processing Standards (FIPS). Rd_lin is a line coverage created from 1:2,000,000-scale DLG coverages of the United States. The coverage contains lines representing roads in the U.S. portion of the map area and the international boundary. All DLG attributes have been stripped from the lines except ROUTE_NUMBER1, ROUTE_NUMBER2, and ROUTE_NUMBER3. Rr_lin is a line coverage created from 1:2,000,000-scale DLG coverages. The coverage contains lines representing railroads in the U.S. portion of the map area. It has no DLG attributes. Grid_lin is a line coverage created to display projection lines in one degree increments. It has no attributes. Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Geologic Division, Central Publications Group Contact_Address: Address_Type: Mailing address Address: U.S. Geological Survey, MS902, Box 25046, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 236-7684 Contact_Facsimile_Telephone: (303) 236-6287 Contact_Electronic_Mail_Address: tpinto@.usgs.gov Resource_Description: Miscellaneous Investigations Series Map I-1420 (NL-17), "Quaternary Geologic Map of the Sudbury 4° × 6° Quadrangle, United States and Canada" Distribution_Liability: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this data set has been used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS as to the accuracy and functioning of the data set and related material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE, SHP Format_Version_Number: 7.2.1 File_Decompression_Technique: WinZip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Fees: No cost for the digital files. Technical_Prerequisites: ArcInfo 7.2.1 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing Address: U.S. Geological Survey Information Services, Box 25286, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: Miscellaneous Investigations Series Map I-1420 (NL-17), "Quaternary Geologic Map of the Sudbury 4° × 6° Quadrangle, United States and Canada" (printed edition) Distribution_Liability: None Standard_Order_Process: Non-digital_Form: Available as one folded sheet, printed on a four-color press; order from USGS at address listed above. Fees: Call 1-888-ASK-USGS or visit http://geography.usgs.gov/esic/prices/ for current price of printed edition. Metadata_Reference_Information: Metadata_Date: 20040701 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Charles A. Bush Contact_Organization: U.S. Geological Survey Contact_Position: Emeritus Geophysicist Contact_Address: Address_Type: Mailing Address: U.S. Geological Survey, MS913, Box 25046, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 236-4723 Contact_Facsimile_Telephone: (303) 236-0214 Contact_Electronic_Mail_Address: cbush@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998