Geologic map of the Fifteenmile Valley 7.5' quadrangle, San Bernardino County, California

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Frequently anticipated questions:


What does this data set describe?

Title:
Geologic map of the Fifteenmile Valley 7.5' quadrangle, San Bernardino County, California
Abstract:
This data set maps and describes the geology of the Fifteenmile Valley 7.5' quadrangle, San Bernardino County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) A PostScript graphic plot-file containing the geologic map, topography, cultural data, a Correlation of Map Units (CMU) diagram, a Description of Map Units (DMU), an index map, a regional geologic and structure map, and a key for point and line symbols; (2) PDF files of this Readme (including the metadata file as an appendix), Description of Map Units (DMU), and a screen graphic of the plot produced by the PostScript plot file.
The geologic map covers the northernmost part of the San Bernardino Mountains and the southern Granite Mountains. These two bedrock areas are separated by the wide, alluviated Fifteenmile Valley. Bedrock units in the San Bernardino Mountains are dominated by large Cretaceous granitic bodies ranging in composition from monzogranite to gabbro, and include lesser Triassic monzonite. The Granite Mountains are underlain chiefly by large Triassic monzonite bodies, and in the western part, by Cretaceous and possibly Jurassic monzogranite to monzodiorite. Spanning the Pleistocene in age, large alluvial fans, flank the north side of the San Bernardino Mountains, and are dominated by debris flow deposits. The central part of Fifteenmile Valley is covered by fine grained alluvial material deposited by streams flowing into Rabbit Lake and an unnamed dry lake in the northwestern part of the quadrangle. Young, south dipping reverse faults, some with moderately to well eroded fault scarps, discontinuously flank the northern edge of the San Bernardino Mountains. Young and old high-angle faults are mapped within both the San Bernardino and Granite Mountains.
The geologic map database contains original U.S. Geological Survey data generated by detailed field observation and by interpretation of aerial photographs. The map was compiled on a base-stable cronoflex copy of the Fifteenmile Valley 7.5' topographic base and then scribed. This scribe guide was used to make a 0.007 mil blackline clear-film, which was scanned at 1200 DPI by Optronics Specialty Company, Northridge, California; minor hand-digitized additions were made at the USGS. Lines, points, and polygons were subsequently edited at the USGS using standard ARC/INFO commands. Digitizing and editing artifacts significant enough to display at a scale of 1:24,000 were corrected. Within the database, geologic contacts are represented as lines (arcs), geologic units as polygons, and site-specific data as points. Polygon, arc, and point attribute tables (.pat, .aat, and .pat, respectively) uniquely identify each geologic datum.
  1. How might this data set be cited?
    Miller, F.K., and Matti, J.C., 2001, Geologic map of the Fifteenmile Valley 7.5' quadrangle, San Bernardino County, California: U.S. Geological Survey Open-File Report 01-132, U.S. Geological Survey, Menlo Park, California.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -117.12509313
    East_Bounding_Coordinate: -116.99990687
    North_Bounding_Coordinate: 34.49999996
    South_Bounding_Coordinate: 34.37498407
  3. What does it look like?
    http://pubs.usgs.gov/of/2001/0132/images/fif_map.gif (GIF)
    Reduced-size image of the geologic map sheet, with topographic base, correlation of map units, description of map units and key to point and line symbols 375x618 pixels, 24-bit color. Size 99kb.
    http://pubs.usgs.gov/of/2001/0132/pdf/fif_map.pdf (PDF)
    Navigable portable document file image of the geologic map, topographic base, Correlation of Map Units, Description of Map Units and key to point and line symbols. 2.8 megabytes.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 01-Jul-1997
    Ending_Date: Jan-2000
    Currentness_Reference:
    Data collection period
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Point (1032)
      • String (2795)
      • GT-polygon composed of chains (1033)
    2. What coordinate system is used to represent geographic features?
      The map projection used is Polyconic.
      Projection parameters:
      Longitude_of_Central_Meridian: -117.0625
      Latitude_of_Projection_Origin: 34.3750
      False_Easting: 0.00000
      False_Northing: 0.00000
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000001
      Ordinates (y-coordinates) are specified to the nearest 0.000001
      Planar coordinates are specified in Meters
      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    Version 1.0 of the Fifteenmile Valley 7.5' quadrangle comprises four ARC/INFO coverages, of which two contain geologic data and two contain cartographic features: fif_geo (geology), fif_str (structural point data), fif_orn (structural line ornamentation), and fif_ldr (annotation leaders). Two INFO tables, lines.rel and points.rel provide a full description of each of the geologic line and point features in the database. A full source citation is provided in the Entity_and Attribute_Detail_Citation section of this metadata document.
    Geologic data represented by line entities and the polygons they delineate are contained in the coverage FIF_GEO. For display purposes, the geology coverage contains one annotation subclass: anno.geo contains unit labels.
    Geological point data includes site-specific information describing the types and the orientation of bedding, foliation, and lineations. One annotation subclass is included in the geologic points coverage, FIF_STR: anno.attitude displays the respective dip and plunge values associated with individual point data.
    Entity_and_Attribute_Detail_Citation:
    A complete description of the polygon, line, and point data coding schemes is available in U.S. Geological Survey Open-File Reports OFR 97-859, OFR 97-860, and OFR 97-861 (full source citations follow):
    Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., Bunyapanasarn, T.P., Koukladas, Catherine, Hauser, R.M., and Cossette, P.M., 1997b, Geologic-point attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-859
    Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., and Cossette, P.M., 1997c, Geologic-polygon attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-860
    Matti, J.C., Powell, R.E., Miller, F.K., Kennedy, S.A., Ruppert, K.R., Morton, G.L., and Cossette, P.M., 1997a, Geologic-line attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-861
    fif_geo.pat
    Geologic units (LABL) and their corresponding names (NAME) identified in the Fifteenmile Valley 7.5'quadrangle
    TAG
    a reference label for subgroups of polygons of the geologic-map unit identified by LABL
    TAG is defined as LABL followed by an upper-case letter, e.g., QwA, QwB, orQwC, etc. All map units in the Fifteenmile Valley database have only one TAG designation, TAG A.
    LABL
    geologic map unit label, in plain text
    ValueDefinition
    QafArtifical fill
    QdgDisturbed ground
    QwVery young wash deposits
    Qw2Very young wash deposits, Unit 2
    Qw1Very young wash deposits, Unit 1
    QfVery young alluvial fan deposits
    Qf2Very young alluvial fan deposits, Unit 2
    Qf1Very young alluvial fan deposits, Unit 1
    QaVery young alluvial-valley deposits
    QswVery young slope wash deposits
    QcVery young colluvial deposits
    QtVery young talus deposits
    QlsVery young landslide deposits
    QpVery young playa deposits
    Qp1Very young playa deposits, Unit 1
    QeVery young eolian deposits
    QsVery young surficial deposits, undifferentiated
    QywYoung wash deposits
    QyfYoung alluvial fan deposits
    Qyf5Young alluvial fan deposits, Unit 5
    Qyf4Young alluvial fan deposits, Unit 4
    Qyf3Young alluvial fan deposits, Unit 3
    Qyf2Young alluvial fan deposits, Unit 2
    Qyf1Young alluvial fan deposits, Unit 1
    QyswYoung slope wash deposits
    QycYoung colluvial deposits
    QylsYoung landslide deposits
    QypYoung playa deposits
    QyeYoung eolian deposits
    QysYoung surficial deposits, undifferentiated
    QofOld alluvial fan deposits
    Qof3Old alluvial fan deposits, Unit 3
    Qof2Old alluvial fan deposits, Unit 2
    Qof1Old alluvial fan deposits, Unit 1
    QocOld colluvial deposits
    QosOld surficial deposits, undifferentiated
    QvofVery old alluvial fan deposits
    Qvof3Very old alluvial fan deposits, Unit 3
    Qvof2Very old alluvial fan deposits, Unit 2
    Qvof1Very old alluvial fan deposits, Unit 1
    QvoswVery old slope wash deposits
    TKmgMafic granodiorite
    MzuGranitic rocks, undivided
    KdpMonzogranite of Deadman Point
    KhrHybrid rocks
    KTrmmMixed monzogranite and leucocratic monzonite
    KawAlaskitic rocks of western Granite Mountains
    KrpRattlesnake pluton of MacColl (1964), porphyritic monzogranite
    KrRattlesnake pluton of MacColl (1964), even-grained monzogranite
    KlmMonzogranite of Luna Mountain
    KmlMixed mafic and leucocratic granitic rocks
    KhlHeterogeneous leucocratic granitic rocks
    KmMixed granitic and metamorphic rocks
    KJhbHornblende-biotite granodiorite
    KJdgMixed diorite and gabbro
    KJosMixed granitic rocks of Oak Spring
    JcrCataclastic rocks
    JscFine-grained rocks of Silver Canyon
    TraAlaskite of Sunset Cove
    TrspQuartz monzonite of Strawberry Peak
    TrhMonzonite of Hill 4001
    TrrlMonzonite of Rabbit Lake
    TrfpMonzonite Fifteenmile Point
    TrfMonzonite of Fawnskin
    TrflLeucocratic monzonite of Fawnskin
    mMetasedimentary rocks, undivided
    PLABL
    Coded geologic map unit label used to generate plot labels with relevant stratigraphic symbols. The geologic units with LABL designating Mesozoic (Mz), and Triassic (Tr) have keystroke substitute characters, }, and ^ respectively, that call their corresponding symbols from the Geoage Font Group. Geologic map unit labels will plot on derivative map plots with appropriate stratigraphic symbols if PLABL is used as the source for unit labels. The Geoage Font Group is accessed through geofont.txt.
    SHDPS
    polygon color (as integer value) from shadeset scamp2.shd (included in the data package)
    SHDFIL
    polygon fill pattern (as integer value) from shadeset geology2.shd (included in the data package)
    NAME
    Geologic name of map unit (see list under LABL attribute)
    fif_geo.aat
    Geologic features such as contacts and faults that bound rock-unit polygons (a complete description of each line type is available in the data table, lines.rel.)
    L-TAG
    Coded alpha-numerical symbol that relates arc to definition of line type in dictionary look-up table (lines.rel). For description of attributes in line classification dictionary, refer to USGS Open-File Report 97-861 (see Entity_and_Attribute_Detail_Citation)
    ValueDefinition
    C17Contact, landslide, location meets map accuracy standard
    C19Contact, landslide, inferred, location may not meet map accuracy standard
    C29Contact, sedimentary, location meets map accuracy standard
    C30Contact, sedimentary, location may not meet map accuracy standard
    C31Contact, sedimentary, inferred, location may not meet map accuracy standard
    C37Contact, sedimentary, separates terraced alluvial units, location meets map accuracy standard
    C49Contact, igneous, location meets map accuracy standard
    C50Contact, igneous, location may not meet map accuracy standard
    C51Contact, igneous, inferred, location may not meet map accuracy standard
    C54Contact, igneous, identity questionable, inferred, location may not meet map accuracy standard
    C99Contact, igneous, scratch boundary
    CL1Cartographic line, map boundary
    F1Fault, high angle, slip unspecified, generic, location meets map accuracy standard
    F7Fault, high angle, slip unspecified, location meets map accuracy standard
    F14Fault, high angle, strike slip, right lateral, inferred, location may not meet map accuracy standard
    F177Fault, low angle, thrust slip, older over younger, location meets map accuracy standard
    F178Fault, low angle, thrust slip, older over younger, location may not meet map accuracy standard
    F180Fault, low angle, thrust slip, older over younger, inferred beneath mapped covering unit, location may not meet map accuracy standard
    F183NFault, low angle, thrust slip, older over younger, existence questionable, inferred beneath mapped covering unit, location may not meet map accuracy standard
    F19Fault, high angle, slip unspecified, inferred beneath mapped covering unit, location may not meet map accuracy standard
    F193Fault, low angle, thrust slip, older over younger, thrust scarp, location meets map accuracy standard
    F195NFault, low angle, thrust slip, older over younger, thrust scarp, identity questionable, location may not meet map accuracy standard
    F2Fault, high angle, strike slip, right lateral, location meets map accuracy standard
    F31Fault, high angle, slip unspecified, generic, existence questionable, location may not meet map accuracy standard
    GF7Geomorphic feature, topographic scarp, origin unknown, location may not meet map accuracy standard
    LT2Lineament, aligned topographic saddles, location may not meet map accuracy standard
    L-SYMB
    stores appropriate line symbol value from the lineset geoscamp2.lin (included in the data package)
    fif_str.pat
    Geological point data includes site-specific information describing the types and the orientation of bedding, foliation, and lineations. One annotation subclass is included in the geologic points coverage, FIF_STR: anno.attitude displays the respective dip and plunge values associated with individual point data.
    P-SYMB
    Coded integer value that relates point to cartographic point symbol in markerset geoscamp2.mrk
    P-TAG
    Coded alpha-numerical value that relates point entity to definition of point type in dictionary INFO table, points.rel. For description of attributes in point classification dictionary, refer to USGS Open-File Report 97-859 (see Entity_and_Attribute_Detail_Citation)
    ValueDefinition
    B2Bedding, inclined, sedimentary rocks
    FN13Foliation, primary igneous, inclined
    FN14Foliation, primary igneous, vertical
    L1Lineation, origin not determined
    P-DIP
    Dip of planar feature
    P-STRIKE
    Azimuthal strike of planar feature
    P-DIPDIR
    Azimuthal direction of dip of planar feature
    P-PLUNGE
    Plunge of linear feature
    P-BEARING
    Azimuthal direction of plunge of linear feature
    fif_ptsorn.pat
    Line ornamentation
    P-TAG
    Coded alpha-numerical value that relates point to definition of point type in dictionary INFO table, points.rel. For description of attributes in point classification dictionary, refer to USGS Open-File Report 97-859 (see Entity_and_Attribute_Detail_Citation)
    ValueDefinition
    FC2Fault attribute, strike slip arrows, right lateral
    P-SYMB
    Coded integer symbol that relates point to cartographic point symbol in markerset geoscamp2.mrk
    fif_ldr.aat
    Annotation leaders
    P-SYMB
    Coded integer value (1) that relates arcs to cartographic line symbol in lineset geoscamp2.lin

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • F.K. Miller
    • J.C. Matti
  2. Who also contributed to the data set?
    Technical review by Karl Kellog led to significant improvements that eventually were reflected in aspects of the database, the plot file, and in the description of the geologic units of the Fifteenmile Valley 7.5' quadrangle.
    Geologic mapping and digital preparation of this report were sponsored jointly by (1) the National Cooperative Geologic Mapping Program of the U.S. Geological Survey, (2) the California Division of Mines and Geology, and (3) the Southern California Areal Mapping Project (SCAMP). In our digital preparation of the data set, carried out in the Geographic Information System laboratory of the Mineral Resources Program of the U.S. Geological Survey in Spokane, Washington by Pamela M. Cossette, we received valuable assistance from Paul C. Hyndman in Spokane, Washington, and from Rachel Alvarez at the SCAMP Geographic Information System laboratory in Riverside, California.
  3. To whom should users address questions about the data?
    F.K. Miller
    U.S.Geological Survey, Western Region, Earth Surface Processes Team
    Project geologist
    U.S. Geological Survey
    Room 202
    West 904 Riverside Avenue
    Spokane, Washington
    USA

    (509) 368-3121 (voice)
    (509) 368-3199 (FAX)
    fmiller@usgs.gov

Why was the data set created?

The data set for the Fifteenmile Valley 7.5' quadrangle was prepared under the U.S. Geological Survey Southern California Areal Mapping Project (SCAMP) as part of an ongoing effort to develop a regional geologic framework of southern California, and to utilize a Geographical Information System (GIS) format to create regional digital geologic databases. These regional databases are being developed as contributions to the National Geologic Map Database of the National Cooperative Geologic Mapping Program of the USGS.
The digital geologic map database for the Fifteenmile Valley 7.5' quadrangle has been created as a general-purpose data set that is applicable to other land-related investigations in the earth and biological sciences. For example, it can be used for mineral resource evaluation studies, animal and plant habitat studies, and soil studies in the San Bernardino National Forest. The database is not suitable for site-specific geologic evaluations.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 1997 (process 1 of 7)
    Field mapping and aerial photograph interpretation; iterative process (F.K. Miller and J.C. Matti).
    Date: 1999 (process 2 of 7)
    Transfer of geologic linework and point data from field maps and aerial photographs to a scale-stable cartographic base of quadrangle (scribeguide) (F.K. Miller and J.C. Matti).
    Date: 1999 (process 3 of 7)
    Description of map units and correlation of map units (F.K.Miller).
    Date: 2000 (process 4 of 7)
    The geologic map information was scanned (initial raster scan in MS-DOS TIF format, 1200 dots per inch) from a clear-film, right-reading, 0.007 mil thickness, base-stable blackline positive (made by contact photograph from a scribeguide) of the author-prepared geologic map at 1:24,000 scale. The raster scan was auto-vectorized by Optronics Specialty Company, Inc.
    Date: 2000 (process 5 of 7)
    ARC/INFO database established; cleanup of auto-vectorizing artifacts; polygon, arc, and point attribute tables established using model developed for SCAMP databases. Digitizing and editing artifacts significant enough to display at a scale of 1:24,000 were corrected (P.M. Cossette).
    Date: 29-Nov-2000 (process 6 of 7)
    First draft of metadata created by cossette using FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set /pool5/c/cossette2/15mile/fif_geo1127
    Date: 17-May-2001 (process 7 of 7)
    Creation of original metadata record Person who carried out this activity:
    U.S. Geological Survey
    Attn: Pamela M. Cossette
    Geographer
    U.S. Geological Survey
    Room 202
    West 904 Riverside Avenue
    Spokane, Washington
    USA

    509-368-3123 (voice)
    509-368-3199 (FAX)
    pcossette@usgs.gov
  3. What similar or related data should the user be aware of?
    Miller, Fred K., Matti, Jonathan C., and Brown, Howard J., 2000301, Digital geologic map of the Butler Peak 7.5' quadrangle, San Bernardino County, California: U.S. Geological Survey Open-File Report 00-145, U.S. Geological Survey, Menlo Park, California.

    Online Links:


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    Geologic-map units in the Fifteenmile Valley quadrangle database were described using standard field methods. Consistent with these methods, the database author has assigned standard geologic attributes to geologic lines, points, and polygons identified in the database.
    Nation-wide geologic-map accuracy standards have not been developed and adopted by the U.S. Geological Survey and other earth-science entities. Until such standards are adopted, the SCAMP project has developed internal map-accuracy standards for 1:24,000-scale geologic maps produced by the project.
    Geologic lines and points on 1:24,000 scale geologic maps are judged to meet SCAMP's internal map-accuracy standards if they are located to within +/-15 meters, relative to topographic or cultural features on the base map.
    Lines and points that meet (or may not meet) this SCAMP internal map-accuracy standard are identified both in the digital database and on derivative geologic-map plots. Within the database, line and point data that are judged to meet the SCAMP internal map-accuracy standard are denoted by the attribute code .MEE. (meets) in the appropriate data table; line and point data that may not meet the SCAMP internal map-accuracy standard are denoted by the attribute code .MNM. (may not meet).
    On any derivative geologic-map plot, line data that are judged to meet the SCAMP internal map-accuracy standard are denoted by solid lines; line data that may not meet the SCAMP internal map-accuracy standard are denoted by dashed or dotted lines. There is no cartographic device for denoting the map-accuracy for geologic-point data (eg. symbols representing bedding, foliation, lineations, etc.).
  2. How accurate are the geographic locations?
    The maximum transformation RMS error acceptable for 7.5' quadrangle transformation and data input is 0.003 (1.8 meters). Horizontal positional accuracy was checked by visual comparison of hard-copy plots with base-stable source data.
    Scale (X,Y)              = (609.484,609.992)
    Skew (degrees)           = (0.010)
    Rotation (degrees)       = (0.001)
    Translation              = (-6431.841,-881.055)
    RMS Error (input,output) = (0.000,0.247)
    Affine  X = Ax + By + C
            Y = Dx + Ey + F
    A = 609.484   B =   0.099   C = -6431.841
    D =   0.012   E = 609.992   F =  -881.055
    TICs
    id input x  input y   output x   output y   x error  y error
    -------------------------------------------------------------
    1  19.985   1.447      5748.683      1.770   0.215   -0.121
    2  1.120    1.447     -5748.683      1.770  -0.215    0.121
    3  1.131    24.178    -5740.129  13867.671   0.215   -0.122
    4  19.967   24.178     5740.129  13867.671  -0.215    0.122
    
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    The geologic map and digital database of the Fifteenmile Valley 7.5' quadrangle contain new data that have been subjected to rigorous review and are a substantially complete representation of the current state of knowledge concerning the geology of the quadrangle.
  5. How consistent are the relationships among the observations, including topology?
    Polygon and chain-node topology present.
    The areal extent of the map is represented digitally by an appropriately projected (polyconic projection), mathematically generated box. Consequently, polygons intersecting the lines that comprise the map boundary are closed by that boundary. Polygons internal to the map boundary are completely enclosed by line segments which are themselves a set of sequentially numbered coordinate pairs. Point data are represented by coordinate pairs.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
The Fifteenmile Valley 7.5' geologic-map database should be used to evaluate and understand the geologic character of the Fifteenmile Valley 7.5' quadrangle as a whole. The data should not be used for purposes of site-specific land-use planning or site-specific geologic evaluations. The database is sufficiently detailed to identify and characterize geologic materials and structures. However, it is not sufficiently detailed for site-specific determinations.
Use of this digital geologic map database 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 compiled and edited at a scale of 1:24,000 means that higher resolution information may not have been uniformly retained 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, although higher resolution data is incorporated in most of the map, the resolution of the combined output will be limited by the lower resolution data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey Information Services
    Box 25286 Denver Federal Center
    Denver, CO
    USA

    303-202-4700 (voice)
    303-202-4693 (FAX)
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
    In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of delivery, installation, operation, or support by USGS.
    This digital, geologic map database of the Fifteenmile Valley 7.5' quadrangle, 1:24,000 map-scale, and any derivative maps thereof, is not meant to be used or displayed at any scale larger than 1:24,000 (e.g., 1:12,000).
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: Geologic map units, and structural features in format ARCE, TIFF (version 7.2.1) Size: 4
      Network links: http://pubs.usgs.gov/of/2001/0132/fif.tar.gz
    • Cost to order the data: none


Who wrote the metadata?

Dates:
Last modified: 10-Jun-2016
Metadata author:
Peter N Schweitzer
USGS Midwest Area
Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/
Mail Stop 954
12201 Sunrise Valley Dr
Reston, VA
USA

703-648-6533 (voice)
703-648-6252 (FAX)
pschweitzer@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/01-132/metadata.faq.html>
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