Metadata: Identification_Information: Citation: Citation_Information: Originator: Brabb, Earl E. Originator: Roberts, Sebastian Originator: Cotton, William R. Originator: Kropp, Alan L. Originator: Wright, Robert H. Originator: Zinn, Erik N. Originator: Mills, Suzanne K. Originator: Barnes, Jason B. Originator: Marsolek, Joanna E. Publication_Date: 2000 Publication_Time: Title: Possible Costs Associated with Investigating and Mitigating Some Geologic Hazards in Rural Parts of San Mateo County, California Edition: 1.0 Geospatial_Data_Presentation_Form: geologic map Series_Information: Series_Name: U.S. Geological Survey Open File Report Issue_Identification: 00-127 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: http://geopubs.wr.usgs.gov/open-file/of00-127 Online_Linkage: http://kaibab.wr.usgs.gov/geohazweb/intro.htm Description: Abstract: This publication addresses deep-seated landslide susceptibility, debris flow susceptibility, and other geologic hazards in rural parts of western San Mateo County. The report also estimates possible costs of investigating and mitigating the landslide hazards. The study area includes the Half Moon Bay 7.5' quadrangle, the Montara Mountain 7.5' quadrangle, and the Pescadero/Butano Creeks watershed. Hazard maps were derived by integrating slope data and previous geologic, landslide and debris flow mapping. The digital database, which is found at http://geopubs.wr.usgs.gov/open-file/of00-127, includes 43 plotfiles for slope maps, Digital Orthophoto Quadrangle maps, Digital Raster Graphic topographic base maps, geologic maps, deep-seated landslide inventory maps, deep-seated landslide susceptibility maps, and debris flow inventory and susceptibility maps. Twelve ARC export files of supporting digital data are included in the database, and other data have been published previously and are available at other USGS websites named in an accompanying pamphlet (of00-127_2.ps, of00-127_2.pdf, of00-127_2.txt). As explained in the pamphlet, a geohazard website included in the publication (http://kaibab.wr.usgs.gov/geohazweb/intro.htm) facilitates interactive use of the hazard information in this database. All data layers are in Universal Transverse Mercator (UTM) projection, zone 10. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000. Purpose: These susceptibility maps and the cost assessment data allow landowners in rural western San Mateo County to determine if their property is impacted by deep-seated landslide and debris flow hazards and, if so, how much money might be required to investigate them. The information is also useful for land use planners, local officials and public interest groups. For example, the maps will be useful for purposes such as determining where sediment from landslides might adversely affect fish in the various creeks, or where roads might be closed after heavy rainfall. Supplemental_Information: An explanatory pamphlet (of00-127_2.ps, of00-127_2.pdf, of00-127_2.txt) accompanies the digital database. An interactive website for landslide hazards (http://kaibab.wr.usgs.gov/geohazweb/intro.htm) is provided for the study area. People can use the website to locate their property, overlay deep-seated landslide hazard maps and determine the possible costs associated with investigating them. Information is provided for investigating and mitigating several other kinds of geologic hazards, but the data are not interactive. Procedures_Used: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are in either GRID (ARC/INFO raster data) format or COVERAGE (ARC/INFO vector data) format. Coverages and grids are stored in ARC export format (ARC/INFO version 7.x) and are compressed by the GZIP (.gz extension) and TAR (.tar extension) utilities. ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.1 to 3.11 is available for free from ESRI's web site: http://www.esri.com). The digital compilation was done in version 7.2.1 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). Revisions: This is the pre-release version of the report. There have been no revisions to any part of the report. Please see the ASCII text file of00-127revs_1.txt for more information about revisions. Reviews_Applied_to_Data: This report has undergone one scientific review, one digital database review, one review for conformity with geologic names policy, and review of the plotfiles for conformity with USGS map standards. Related_Spatial_and_Tabular_Data_Sets: This report consists of a set of geologic map database files (ARC/INFO coverages and grids) and supporting text and plotfiles. The two sets of plotfiles (PostScript and PDF format) will generate map sheets and pamphlets in the style of a USGS Open-File Report. These files are described in the explanatory pamphlet (of00-127_2). Other_References_Cited: Other references cited are listed in the explanatory pamphlet (of00-127_2). Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Currentness_Reference: The date given is the publication date. The information in the report is the most up-to-date available at the time of publication. Status: Progress: pre-publication Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: Pescadero/Butano watershed West_Bounding_Coordinate: -122.41219642 East_Bounding_Coordinate: -122.12402152 North_Bounding_Coordinate: 37.31982895 South_Bounding_Coordinate: 37.19339877 Spatial_Domain: Bounding_Coordinates: Half Moon Bay Quadrangle West_Bounding_Coordinate: -122.50086941 East_Bounding_Coordinate: -122.37401141 North_Bounding_Coordinate: 37.5005393 South_Bounding_Coordinate: 37.37438162 Spatial_Domain: Bounding_Coordinates: Montara Mountain Quadrangle West_Bounding_Coordinate: -122.55760384 East_Bounding_Coordinate: -122.37396737 North_Bounding_Coordinate: 37.62578981 South_Bounding_Coordinate: 37.49940679 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: landslide Theme_Keyword: deep-seated landslide Theme_Keyword: debris flow Theme_Keyword: geologic hazard Theme_Keyword: susceptibility Theme_Keyword: landslide inventory Theme_Keyword: debris flow inventory Theme_Keyword: earthquake Theme_Keyword: fault rupture Theme_Keyword: liquefaction Theme_Keyword: ground failure Theme_Keyword: shaking Theme_Keyword: coastal erosion Theme_Keyword: cost Theme_Keyword: mitigation Theme_Keyword: investigation Theme_Keyword: property Theme_Keyword: slope Theme_Keyword: landslide deposit Place: Place_Keyword_Thesaurus: None Place_Keyword: United States of America Place_Keyword: California Place_Keyword: San Mateo County Place_Keyword: Half Moon Bay Place_Keyword: Montara Mountain Place_Keyword: Pescadero Place_Keyword: Butano Place_Keyword: San Francisco Bay Area Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Definite landslide deposit Stratum_Keyword: Probable landslide deposit Stratum_Keyword: Questionable landslide deposit Stratum_Keyword: Unattributed landslide deposit Stratum_Keyword: Young Quaternary landslide deposit Stratum_Keyword: Questionable young Quaternary landslide deposit Stratum_Keyword: Old Quaternary landslide deposit Stratum_Keyword: Questionable old Quaternary landslide deposit Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Quaternary Access_Constraints: None Use_Constraints: Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:24,000 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:24,000 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Western Geologic Mapping Team Contact_Person: Database coordinator Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road, MS 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Data_Set_Credit: The authors are grateful to Russell Graymer, David Howell, William Lettis, Bruce Clark, John O'Rourke, Betsy Mathieson, Reid Fisher, Roberta Smith, Gerald Weber, Earl Hart, and John Wade who kindly provided excellent comments used to revise various drafts. Suzanne Mills kindly made corrections to the text, figures and database, and made plots of all the maps. Scott Graham helped to revise the Web text. Note: Authorship of the geology of this publication resides in the first six names in the author list in the order given. Sebastian Roberts is also the primary digital database author. The last three names, starting with Suzanne K. Mills, are the other digital database authors in the order given. Security_Information: Security_Classification_System: None Security_Classification: Unclassified Security_Handling_Description: None Native_Data_Set_Environment: SunOS, 5.5.1, sun4u UNIX, ARC/INFO version 7.2.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: See Entity_Attribute_Information Quantitative_Attribute_Accuracy_Assessment: Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. Logical_Consistency_Report: Polygon and chain-node topology present Completeness_Report: The report is intended to be a complete analysis of all previous landslides through 1963 at a 1:24,000 scale. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The position of each data item is derived from the USGS topographic base map, and therefore additional inaccuracies arising from inaccuracies in the base map may also be encountered. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: No vertical positional data recorded. Lineage: See also Supplemental_Information: Process_Step: Process_Description: The digital topographic base maps are USGS Digital Raster Graphic (DRG) base maps at a scale of 1:24,000. These are raster versions of the familiar USGS topographic paper maps. Each raster cell has dimensions of 2 meters on a side. On the geohazard website, a shaded relief base is always used on the debris flow susceptibility map, may or may not be used on the deep-seated landslide susceptibility map, or may be displayed by itself. Shading the hillsides from a sun angle of 315 degrees clockwise from north, and an azimuth of 45 degrees creates an illusion of three-dimensional topography. The shaded relief is derived from a 10 meter UGS Digital Elevation Model (DEM). This is a raster data set with cells 10 meters on a side and an elevation value interpolated from the orthophotos described below. A shaded relief grid can be made from a DEM using the ARC/INFO GRID 'hillshade' command. The shaded relief is combined on the map with the other data layers, such as the pink debris-flow susceptibility map, by using the ARC/INFO 'gridcomposite' command. The slope maps are derived from USGS 10-meter Digital Elevation Models (DEMs) using the ARC/INFO GRID 'slope' command. For each 10-meter cell, the slope is calculated from an average of the slope in each of 8 cells surrounding the 10-meter cell. This slope is expressed as percent rise. A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image made from aerial photographs in which the images are digitally rectified to remove distortions caused by relief and camera angle. Buildings and other objects shown on the quadrangle are positioned to reflect their true distances from each other. Four DOQs are needed for each 7.5' quadrangle. The Pescadero watershed DOQ map includes parts of 11 separate DOQs spanning 6 quadrangles. The Half Moon Bay quadrangle includes 4 DOQs in their entirety. The Montara Mountain quadrangle includes 6 DOQs because it is slightly larger than a standard USGS quadrangle. All the DOQs were derived from air photos taken on October 30, 1991. The geologic map of the Pescadero watershed is from the digital geologic map of the Palo Alto 30' x 60' quadrangle by Brabb and others (1999). The geologic maps of Half Moon Bay and Montara Mountain quadrangles are from the geologic map of San Mateo County by Brabb and others (1998). These maps show general distribution of bedrock and surficial deposits that can influence the distribution of landslide deposits and affect construction costs. The description of the geologic units represented on the geologic maps can be found on the accompanying unit description sheet. The digital compilation of the landslide inventory for the Pescadero watershed and the Half Moon Bay quadrangle was derived from linework inked directly by the authors on USGS mylar greenline 7.5' (1:24,000 scale) quadrangle maps. The inked linework for each source map was scanned (400 dots per inch), converted from raster to vector form, imported into ARC/INFO, and hand edited and combined into a single digital file. Adjustments were made to fit lines across quadrangle boundaries. Polygon topology was created and each landslide polygon tagged on-screen. The digital compilation of the Montara Mountain quadrangle was derived from the geologic map by Pampeyan (1994). Likewise, the original greenline was scanned, converted to vector form, and hand edited to extract just the landslide information from the geologic map. The deep-seated landslide susceptibility grids were developed in ARC/INFO GRID and are based on a susceptibility matrix developed by Brabb and others (1972). The maps are constructed using three source maps: a slope map, a geologic map, and a landslide inventory map (all described above). To develop the 1972 susceptibility map, Brabb and others superimposed the landslide inventory map onto a geologic map and arranged the geologic units by increasing percentage of area that had failed due to landsliding. The units were then given an overall susceptibility ranging from I (low) to VII (high). The highest susceptibility class (L) was assigned to the landslide deposits themselves, because they were believed to be more susceptible to future landsliding than the rock units from which they are derived. The slope map was then superimposed onto the combined geologic map and landslide inventory map to determine the incidence of landsliding in each geologic unit in each slope category. The overall susceptibility rating for the geologic unit was adjusted downward where no landslides had formed on low slopes. The primary differences between the 1972 map and the susceptibility maps provided here are the use of new slope maps and the use of polygons around just the landslide deposits. On the 1972 map, areas between the deposits and the scarps were also included as a landslide polygon. The matrix table used by Brabb and others (1972) for the entire county is the same one used here. Susceptibility numbers are assigned for each 30-meter cell depending on the unit-slope combination defined in the table. Only the three highest hazard zones, including the landslide deposits (L), are used to determine costs on the web site because these zones are the same ones used by San Mateo County (1973) to restrict development. Debris flow inventory and susceptibility grids were developed in ARC/INFO GRID. The grids consist of cells measuring 10 meters on a side. Debris flow points of origin, shown as black dots on these maps, are recorded by Wieczorek and others (1988) for the January 1982 storm. These points are not included in the database, but they can be downloaded from USGS website named in the pamphlet. The shaded pink areas indicated places where debris flows might occur in the future. The shading originates from a statement by Nilsen and others (1979, p.36) that most of the landslides in the San Francisco Bay area occur on slopes steeper than 15%. Accordingly, the pink shading shows slopes steeper than 15% derived from the slope map described above. Using the GRID command 'conditional,' the debris flow susceptibility grid was calculated to give all cells with a slope of 15% or higher a value of 15, and set all the remaining cells to null. Some of the debris flows in 1982 extended beyond the pink shading and into the flat valleys below -- future hazard should be determined by qualified experts on a site-by-site basis. Included in the database are plotfiles for each of the above maps for the Half Moon Bay quadrangle, the Montara Mountain quadrangle, and the Pescadero watershed. All plotfiles were created in ArcPlot. Data layers for the DRGs, DOQs, shaded relief maps, and geologic maps are not included in the database. These layers have been previously published and can be downloaded from other USGS websites named in the pamphlet (of00-127_2). 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Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: author Entity_Type: Entity_Type_Label: OF00-127_4C.PAT Entity_Type_Definition: Attribute table of OF00-127_4C. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: AREA Attribute_Definition: Area of polygon region in square coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of poly/region in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: OF00-127_4C# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: OF00-127_4C-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition: Calculated to equal OF00-127_4C# Enumerated_Domain_Value_Definition_Source: author Attribute: Attribute_Label: PTYPE Attribute_Definition: Landslide label Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qol Enumerated_Domain_Value_Definition: Old Quaternary landslide deposit Enumerated_Domain_Value_Definition_Source: author Enumerated_Domain: Enumerated_Domain_Value: Qol? Enumerated_Domain_Value_Definition: Questionable old Quaternary landslide deposit Enumerated_Domain_Value_Definition_Source: author Enumerated_Domain: Enumerated_Domain_Value: Qyl Enumerated_Domain_Value_Definition: Young Quaternary landslide deposit Enumerated_Domain_Value_Definition_Source: author Enumerated_Domain: Enumerated_Domain_Value: Qyl? Enumerated_Domain_Value_Definition: Questionable young Quaternary landslide deposit Enumerated_Domain_Value_Definition_Source: author Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: OF00-127_4C.AAT Entity_Type_Definition: Attribute table of OF00-127_4C. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal number of from-node Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal number of to-node Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal number of poly to left of arc Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal number of poly to right of arc Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of arc in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: OF00-127_4C# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: OF00-127_4C-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition: Calculated to equal OF00-127_4C# Enumerated_Domain_Value_Definition_Source: author Attribute: Attribute_Label: LTYPE Attribute_Definition: refer to LTYPE definitions listed under OF00-127_4A.AAT, as all LTYPEs in OF00-127_4A.AAT are identical to those in OF00-127_4C.AAT. Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: author Entity_Type: Entity_Type_Label: OF00-127_3A.VAT Entity_Type_Definition: Attribute table of OF00-127_3A. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: VALUE Attribute_Definition: debris flow susceptibility Attribute_Definition_Source: author Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 15 Enumerated_Domain_Value_Definition: having a slope >= 15% Enumerated_Domain_Value_Definition_Source: author Attribute: Attribute_Label: COUNT Attribute_Definition: Number of GRID cells of a VALUE Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: OF00-127_5A.VAT Entity_Type_Definition: Attribute table of OF00-127_5A. Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: VALUE Attribute_Definition: relative landslide susceptibility Attribute_Definition_Source: user-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 7 Attribute: Attribute_Label: COUNT Attribute_Definition: Number of GRID cells of a VALUE Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Overview_Description: Entity_and_Attribute_Overview: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California). Almost all the attributes in the attribute tables of the landslide inventory coverages included in the report are set or calculated by ARC/INFO. The exceptions are "coveragename"-ID, LTYPE, and PTYPE. "coveragename"-ID is required by internal policy to be sequential. This ensures the highest compatibility of our databases with other GISs. Therefore "coveragename"-ID is calculated equal to "coveragename"#, which is a unique, sequential integer assigned by ARC/INFO to each data record. LTYPE and PTYPE are author added items to the coverage AAT or PAT that are used to describe the type of line (LTYPE) or landslide area (PTYPE) being recorded. The PTYPEs define the degree of confidence which the author had when identifying the area as a landslide deposit. All coverages include these items in the data structure. Each item has WIDTH 35, OUTPUT 35, TYPE C. For the susceptibility grids, integers stored in the database field VALUE of the VAT correspond to susceptibility values. In the debris flow susceptibility grids, the value '15' designates cells with a slope greater than or equal to 15%, which corresponds to areas susceptible to debris flows. In the landslide susceptibility grids, each cell is assigned a relative susceptibility value of 0 through 7. The slope grids contain slope data stored as continuous floating-point numbers, and thus a VAT is not present for these grids. Entity_and_Attribute_Detail_Citation: This report combined with the explanatory pamphlet: of00-127_2. Distribution_Information: Distributor: U.S. Geological Survey Contact_Information: Digital Form Contact_Person_Primary: Contact_Person: Western San Mateo County Landslide Hazard, c/o Database Coordinator Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 345 Middlefield Rd., M/S 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Instructions: Please contact by mail. For digital packages on Exabyte tape, send a tape with your request. Please specify which files you are requesting. Resource_Description: USGS Open-File Report OF-00-127 consists of both traditional geologic map products and Arc/Info format geospatial databases. Furthermore, the traditional geologic map products (map sheets and pamphlets) can be obtained either as paper or as digital plot files. 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 publication has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Format_Version_Number: 1.0 Format_Version_Date: May 2000 Format_Specification: ARC/INFO export files, PostScript and PDF plotfiles File_Decompression_Technique: TAR and gzip (see the pamphlet (of00-127_2.ps, of00-127_2.pdf, of00-127_2.txt) for more information about TAR and gzip). Transfer_Size: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geopubs.wr.usgs.gov/open-file/of00-127 Offline_Option: Send a request with an Exabyte tape to the Database Coordinator via the contact information given above. Specify the files requested. Offline_Media: 8 mm Exabyte tape Recording_Capacity: 2.3 GB or 5.0 GB Recording_Format: TAR file compressed with gzip Compatibility_Information: Fees: No fees for digital forms of the report. Ordering_Instructions: Digital files (both plotfiles and database files) can be obtained on-line as described above at the publication web-site, or by sending a request with an 8 mm Exabyte tape (described above) to the Database Coordinator at the address shown above. Be sure to include the name of the digital files you are requesting. Distributor: U.S. Geological Survey Contact_Information: Non-Digital Form Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing address Address: Box 25286, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: (303) 202-4200 Contact_Facsimile_Telephone: (303) 202-4695 Contact_Electronic_Mail_Address: infoservices@usgs.gov Hours_of_Service: Contact_Instructions: Please contact by mail, email, or phone. Please specify which files you are requesting. Resource_Description: USGS Open-File Report OF 00-127 consists of both traditional geologic map products and ARC/INFO format geospatial databases. Furthermore, the traditional geologic map products (map sheets and pamphlets) can be obtained either as paper or as digital plot files. 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 publication has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Non-digital_Form: Paper copies of the map sheets and pamphlet can be obtained by contacting USGS Information Services via the contact information listed above. Fees: Plotting fees are set by USGS Information Services, and may be obtained by contacting them via the contact information given above. Ordering_Instructions: Paper copies of the map sheets and pamphlet can be obtained by contacting USGS Information Services via the contact information listed above. Metadata_Reference_Information: Metadata_Date: 20000620 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: S. K. Mills Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing Address: 345 Middlefield Rd., M/S 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None