Identification_Information: Citation: Citation_Information: Originator: Gerald M. Richmond (ed.) Originator: David S. Fullerton (ed.) Originator: Joseph H. Hartshorn (comp.) Originator: Woodrow B. Thompson (comp.) Originator: William F. Chapman (comp.) Originator: Robert F. Black (comp.) Originator: Gerald M. Richmond (comp.) Originator: Douglas R. Grant (comp.) Originator: David S. Fullerton (comp.) Publication_Date: 2006 Title: Quaternary Geologic Map of the Boston 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 (NK-19) 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: 1991 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 Boston 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 universities, the Geological Survey of Canada, 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 of the parts of States and Provinces included in the quadrangle were prepared by the compilers. Second, the maps were combined, integrated, and locally 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. Some differences in mapping or interpretation in different areas were resolved by correspondence. Most of the remaining differences simply reflect differences in available information or philosophies of mapping and should encourage further investigation. 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. 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 other glacial features, 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 Modified Polyconic to Albers Equal Area and all subsequent digital databases will similarly be changed to Albers Equal Area Projection. Illustrations are provided showing an index to International Map of the World 1:1,000,000 topographic series; topographically controlled lobate margins of late Wisconsin Laurentide ice sheet in southeastern New England; distribution of glacial drift on the continental shelf and in the Gulf of Maine; 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 Boston 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 Illustrator or ArcInfo meta 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: 1987 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.00 East_Bounding_Coordinate: -66.00 North_Bounding_Coordinate: 44.00 South_Bounding_Coordinate: 40.00 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: Connecticut Place_Keyword: Great Lakes Place_Keyword: Massachusetts Place_Keyword: Maine Place_Keyword: New Hampshire Place_Keyword: New York Place_Keyword: Nova Scotia Place_Keyword: Rhode Island 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: Cenozoic Temporal_Keyword: Early Wisconsin Temporal_Keyword: Holocene Temporal_Keyword: Late Wisconsin Temporal_Keyword: Pleistocene Temporal_Keyword: Pliocene Temporal_Keyword: Quaternary Temporal_Keyword: Sangamon 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 980, 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_nk-19_map.pdf> Browse_Graphic_File_Description: Scan of the original published paper map. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nk-19_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. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nk-19_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_nk-19_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_nk-19_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_nk-19_lobate.pdf> Browse_Graphic_File_Description: Scan of illustration on the paper map showing topographically controlled lobate margins of late Wisconsin Laurentide ice sheet in southeastern New England. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nk-19_drift.pdf> Browse_Graphic_File_Description: Scan of illustration on the paper map showing distribution of glacial drift on the continental shelf and in the Gulf of Maine. Browse_Graphic_File_Type: PDF Browse_Graphic: Browse_Graphic_File_Name: I-1420_nk-19_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 Boston 4° x 6° Quadrangle, United States and Canada, I-1420 (NK-19) was compiled by Joseph H. Hartshorn, Department of Geology and Geography, University of Massachusetts, Woodrow B. Thompson, Maine Geological Survey, William F. Chapman, Department of Geology, Slippery Rock State College, Pennsylvania, Robert F. Black, Department of Geology, University of Connecticut, Gerald M. Richmond, U.S. Geological Survey, Douglas R. Grant, Geological Survey of Canada, and David S. Fullerton, U.S. Geological Survey. The state compilations were edited and integrated by Gerald M. Richmond and David S. Fullerton, U.S. Geological Survey. The compilations of geology and glacial features were converted to digital form by TechniGraphic Systems, Inc., of Fort Collins, CO, under contract with the U.S. Geological Survey and modified by Charles A. Bush. The hydrography layer, topographic layer, illustrations, word-processor files, and DLG coverages were prepared by Bush. Native_Data_Set_Environment: Windows_NT, 4.0, Intel ArcInfo version 8.3 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. In addition, conflicts pertaining to the placement of features existed between the geology and hydrography hard copy source data, making it necessary to conflate the data sources into a single workable coverage. Cartographic and geologic experience and knowledge were used to provide a best fit solution for this problem. 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, added additional attribution, 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 ice-contract marine deltas, striations, and drumlins. 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. The glacial lines were scanned from the green-line mylar base that the compiler drew. In a few cases, it varied slightly from the published map. 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: Gerald M. Richmond (ed.) Originator: David S. Fullerton (ed.) Originator: Joseph H. Hartshorn (comp.) Originator: Woodrow B. Thompson (comp.) Originator: William F. Chapman (comp.) Originator: Robert F. Black (comp.) Originator: Gerald M. Richmond (comp.) Originator: Douglas R. Grant (comp.) Originator: David S. Fullerton (comp.) Publication_Date: 1991 Title: Quaternary Geologic Map of the Boston 4° x 6° Quadrangle, United States and Canada Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Miscellaneous Investigations Series Issue_Identification: I-1420 (NK-19) 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, 1991 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, hydrology, and glacial layers, vectorized scan, converted into ArcInfo coverages and attributed files from published paper map, and produced check plots and coverages. Process_Date: 2001 Process_Step: Process_Description: C.A. Bush scanned paper map for topography layer, vectorized scan, and converted into ArcInfo coverage. Process_Date: 2005 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 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. 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: 2005 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, other illustrations, cleaned the scans, and converted them to PDF format. Process_Date: 2005 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: 2005 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: 2005 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: 500 Ordinate_Resolution: 500 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 or shorelines. 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, "water." Since unit "ts" was shown on the paper map in two different colors to represent ground and end moraines, the unit was changed to "ts(g)" and "ts(e)" in the database. (See table below.) AGE--Refers to the age of the map unit and is one of the following: "HOLOCENE," "HOLOCENE AND LATE WISCONSIN," "LATE WISCONSIN," "LATE WISCONSIN AND EARLY WISCONSIN," "SANGAMON," PLIOCENE AND OLDER CENOZOIC," or blank where not applicable. (See table below.) MAPUNITS--A description of the deposits and materials that make up the map units; blank where not applicable (see below). See pamphlet or text-only file for full unit descriptions. 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 > >be; BEACH AND DUNE SAND; HOLOCENE >hs; SWAMP DEPOSIT; HOLOCENE AND LATE WISCONSIN >hps; SALINE MARSH AND ESTUARINE PEAT AND CLAY; HOLOCENE AND LATE WISCONSIN >ag; ALLUVIUM; HOLOCENE AND LATE WISCONSIN >al; ALLUVIUM; HOLOCENE AND LATE WISCONSIN >es EOLIAN SAND; HOLOCENE AND LATE WISCONSIN >ed; DUNE SAND; HOLOCENE AND LATE WISCONSIN > >lca; LAKE SILT AND CLAY; LATE WISCONSIN >lsa; LAKE SAND; LATE WISCONSIN >mc; MARINE SILT AND CLAY; LATE WISCONSIN >ms; MARINE SAND AND GRAVEL; LATE WISCONSIN >mkd; MARINE ICE-CONTACT DELTA SAND AND GRAVEL; LATE WISCONSIN >gg; OUTWASH SAND AND GRAVEL; LATE WISCONSIN >ggl; OUTWASH SAND AND GRAVEL AND UNDERLYING LAKE DEPOSITS; LATE WISCONSIN >gsl; OUTWASH SAND AND UNDERLYING LAKE DEPOSITS; LATE WISCONSIN >kg; ICE-CONTACT SAND AND GRAVEL; LATE WISCONSIN >kd; ICE-CONTACT DELTA SAND AND GRAVEL; LATE WISCONSIN >ts(g); SANDY TILL--Ground moraine; LATE WISCONSIN >ts(e); SANDY TILL--End moraine; LATE WISCONSIN >tsr; SANDY TILL--Attenuated drift; LATE WISCONSIN >tm; TILL AND MARINE DEPOSITS, UNDIVIDED--Ground moraine; LATE WISCONSIN >tmr; TILL AND MARINE DEPOSITS, UNDIVIDED--Attenuated drift; LATE WISCONSIN >ke; KAME MORAINE; LATE WISCONSIN >tx; SANDY TO CLAYEY TILL; LATE WISCONSIN > >txa; SANDY TO CLAYEY TILL; LATE WISCONSIN AND EARLY WISCONSIN > >mse; MARINE FOSSILIFEROUS SAND, SILT, CLAY, AND GRAVEL; SANGAMON >ugg; GLACIATED GRANITIC GRUS; PLIOCENE AND OLDER CENOZOIC > > >IT; ICE-THRUST MASS >f; MANMADE LAND >water > 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," or "Map Boundary." The gla_lin coverage contains lines of linear glacial features. The gla_lin.aat INFO file consists of the following item: LTYPE--Refers to the type of glacial feature described by the arc and is one of the following: "Esker," Outer limit of glacial advance;" "Outer limit of glacial advance, inferred;" Outer limit of glacial advance, submerged;" Erratic boulder fan;" or "Minor washboard moraines." 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: "Striations," "Drumlin," or "Ice-contact marine delta." ANGLE--Refers to the direction of feature or ice movement; in degrees measured clockwise from north. MRK--Number of symbol from markerset (glacial.mrk)used to plot the feature. Hydr_lin is a line coverage created after scanning and vectorizing the hydrographic layer that was used in the original paper map. It has no user-defined attributes. Topo_lin is a line coverage created after scanning and vectorizing the topographic layer that was used in the original paper map. It has no user-defined attributes. Bnd_lin is a line coverage created from 1:2,000,000-scale U.S. Geological Survey Digital Line Graph coverages (DLG). The coverage contains lines representing state boundaries. It has no user defined items. The coverage is annotated with state 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 with state and county names. 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. All DLG attributes have been stripped from the lines except "FEATURE," "NAME," " and "STATE." FEATURE is a description of the highway type. NAME is a list of of the highway number or numbers. 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. It has no user-defined attributes. Grid_lin is a line coverage created to display projection lines in one-degree increments. It has no user-defined attributes. Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Colorado Publishing Services Center 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_Electronic_Mail_Address: tpinto@usgs.gov Resource_Description: Miscellaneous Investigations Series Map I-1420 (NK-19), "Quaternary Geologic Map of the Boston 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: 8.3 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 8.3 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 (NK-19), "Quaternary Geologic Map of the Boston 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: 20060701 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, MS980, 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