USGS Geoscience Data Catalog
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Matti, Jonathan C., Morton, Douglas C., Cox, Brett F., Carson, Scott E., and Yetter, Thomas J., 2003, Geologic map and digital database of the Yucaipa 7.5' quadrangle, San Bernardino and Riverside Counties, California: United States Geological Survey Open-File Report 03-301, U.S. Geological Survey, Menlo Park, California.
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is Polyconic.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.0027671901044
Ordinates (y-coordinates) are specified to the nearest 0.0027671901044
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.
yuc_geo (geologic map units and linear geologic entities) yuc_pts (geologic point features) yuc_obs (distribution of data stations) yuc_ptsorn (geologic line ornamentation) yuc_ldr (map-unit label leaders).Three additional INFO tables are included in the data set: yuc_summ.rel (provides general information about each geologic-map unit, including general lithologic features, geologic age, and geologic origin which applies to all polygons of a specified map unit)
|Kao||Granodiorite of Angeles Oaks|
|Monzogranite of City Creek|
|Mzc||Diorite of Cram Peak|
|Mzfg||Foliated granitoid rock|
|Mzga||Orthogneiss of Alger Creek|
|Mzgr||Mesocratic granitoid rock|
|Mzi||Inclusion-rich granitoid rock|
|Mzmg||Mylonitic and cataclastic granitoid rock|
|Mzmm||Mixed mafic rocks|
|Mzpsg||Pelona Schist, greenstone unit|
|Mzpsm||Pelona schist, muscovite schist|
|QTstu||San Timoteo beds of Frick (1921), upper member|
|Qvya||Very young axial-valley deposits (latest Holocene)|
|Qvyc||Very young colluvial deposits (latest Holocene)|
|Qvyf||Very young alluvial-fan deposits (latest Holocene)|
|Qvyls||Very young landslide deposits (latest Holocene)|
|Qoa1||Old axial-valley deposits, Unit 1|
|Qoa2||Old axial-valley deposits, Unit 2|
|Qoa3||Old axial-valley deposits, Unit 3|
|Qof||Old alluvial-fan deposits|
|Qof1||Old alluvial-fan deposits, Unit 1|
|Qof2||Old alluvial-fan deposits, Unit 2|
|Qof3||Old alluvial-fan deposits, Unit 3|
|Qols||Old landslide deposits|
|Qvoa3||Very old axial-valley deposits, Unit 3|
|Qvof3||Very old alluvial-fan deposits, Unit 3|
|Qvos||Very old surficial deposits, undifferentiated|
|Qvyw||Very young wash deposits, active (latest Holocene)|
|Qvyw1||Very young wash deposits, Unit 1 (latest Holocene)|
|Qvyw2||Very young wash deposits, Unit 2 (latest Holocene)|
|Qya||Young deposits of axial-valley floors|
|Qya1||Young axial-valley deposits, Unit 1|
|Qya3||Young axial-valley deposits, Unit 3|
|Qya4||Young axial-valley deposits, Unit 4|
|Qya5||Young axial-valley deposits, Unit 5|
|Qyf||Young alluvial-fan deposits|
|Qyf1||Young alluvial-fan deposits, Unit 1|
|Qyf2||Young alluvial-fan deposits, Unit 2|
|Qyf3||Young alluvial-fan deposits, Unit 3|
|Qyf4||Young alluvial-fan deposits, Unit 4|
|Qyf5||Young alluvial-fan deposits, Unit 5|
|Qyls||Young landslide deposits|
|Ta||Andesite to dacite|
|Tma||Mill Creek Formation of Gibson (1971), arkose unit|
|Tmcp||Mill Creek Formation of Gibson (1971), Pelona Schist-bearing conglomerate unit|
|Tmcv||Mill Creek Formation of Gibson (1971), volcanic-clast-bearing unit|
|Tmm||Mill Creek Formation of Gibson (1971), mudrock unit|
|Tms||Mill Creek Formation of Gibson (1971), sandstone unit|
|Tw||Formation of Warm Springs Canyon|
|gg||Gneissose granitoid rock and gneiss|
|C18||.contact.landslide.location may not meet accuracy standard|
|C26||.contact.landslide.crown scarp.location may not meet map accuracy standard|
|C29||.contact.sedimentary.location meets map accuracy standard|
|C30||.contact.sedimentary.location may not meet map accuracy standard|
|C32||.contact.sedimentary.location inferred beneath mapped covering unit.location may not meet map accuracy standard|
|C37||.contact.sedimentary.separates terraced alluvial units. location meets accuracy standard|
|C38||.contact.sedimentary.separates terraced alluvial units. location may not meet accuracy standard|
|C50||.contact.igneous.location may not meet accuracy standard|
|C51||.contact.igneous.inferred.location may not meet accuracy standard|
|CL1||.cartographic line.map boundary|
|F10||.fault.high-angle.normal slip.location observable.may not meet accuracy standard|
|F178||.fault.low-angle.thrust slip.location observable.may not meet map accuracy standard|
|F180||.fault.low-angle.thrust slip.location inferred beneath mapped covering unit.may not meet map accuracy standard|
|F13||.fault.high-angle.unspecified slip.location inferred.may not meet map accuracy standard|
|F19||.fault.high-angle.unspecified slip.location observable.may not meet map accuracy standard|
|F2||.fault.high-angle.strike slip.right lateral.location observable.meets map accuracy standard|
|F20||.fault.high-angle.strike slip.right lateral.location observable.may not meet accuracy standard|
|F22||.fault.high-angle.normal slip.location observable.may not meet map accuracy standard|
|F23||.fault.high-angle.reverse slip.location observable.may not meet map accuracy standard|
|F4||.fault.high-angle.normal slip.location observable.meets map accuracy standard|
|F37||.fault.high-angle.unspecified slip.questionable existence.may not meet map accuracy standard|
|F50||.fault.high-angle.strike slip.right lateral.scarp.meets map accuracy standard|
|F52||.fault.high-angle.normal slip.fault scarp.meets map accuracy standard|
|F53||.fault.high-angle.reverse slip.fault scarp.meets map accuracy standard|
|F58||.fault.high-angle.normal slip.fault scarp.location may not meet map accuracy standard|
|F67N||.fault.high-angle.normal slip.fault scarp.identity questionable|
|F67R||.fault.high-angle.normal slip.scarp.identity questionable|
|F7||.fault.high-angle.unspecified slip.location observable.may not not meet map accuracy standard|
|F8||.fault.high-angle.strike slip.right lateral.location observable.may not meet map accuracy standard|
|B19||.bedding attitude.sedimentary.inclined.binocular observation|
|B2||.bedding attitude.sedimentary.inclined.original data|
|B23||.bedding attitude.sedimentary.inclined.compiled data|
|B4||.bedding attitude.sedimentary.vertical.original data|
|B6||.bedding attitude.sedimentary.overturned.original data|
|FC4||.fault dip direction|
|FN13||.foliation attitude.igneous.inclined.original data|
|FN14||.foliation attitude.igneous.vertical.original data|
|FN2||.foliation attitude.origin not determined.inclined.original data|
|FN3||.foliation attitude.origin not determined.vertical.original data|
|FN31||.foliation attitude.strain dominated.inclined.original data|
|FN32||.foliation attitude.strian dominated.vertical.original data|
|FN42||.foliation attitude.metamorphic.inclined.original data|
|L1||.lineation.origin not determined.original data|
|L14||.lineation.high-strain.crushed and streaked minerals.original data|
|L17||.lineation.high-strain.aligned mineral grains.original data|
|L19||.lineation.metamorphic.crushed and streaked minerals.original data|
|L37||.lineation.minor-fold axis.geometry not determined.original data|
|L40||.lineation.minor-fold axis.dextral rotation.original data|
|L43||.lineation.minor-fold axis.kink band fold.original data|
|L59||.lineation. minor-fold axis. sinistral rotation. original data|
|NRCS-SWSB-22||Natural Resources Conservation Service pit/soil profile description|
|NRCS-SWSB-14||Natural Resources Conservation Service pit/soil profile description|
|NRCS-SWSB-12||Natural Resources Conservation Service pit/soil profile description|
|NRCS-SWSB-23||Natural Resources Conservation Service pit/soil profile description|
|WRD-EP||USGS Water Resources Division well/well-log data|
Photogrammetric Geologic Compilation: The U.S. Geological Survey's Photogrammetric Plotter Laboratory in Denver, Colorado (James Messerich, photogrammetrist) provided Kern PG-2 stereographic plotters that enabled the high-precision, high-accuracy transfer of geologic linework and point data from aerial photographs to a scale-stable cartographic base.
Scientific Peer Review: The database and plot file benefitted from technical reviews by R.F. Yerkes, P. Stone, F.K. Miller, and D. Bedford. We thank Peter M. Sadler and Michael O. Woodbourne for discussions of the stratigraphy and structure of rocks in the Yucaipa quadrangle.
Programmatic Credit: Geologic mapping, topical studies, and digital preparation for this database were sponsored jointly by the following: (1) the U.S. Geological Survey's National Cooperative Geologic Mapping Program, the National Earthquake Hazards Program, and the Mineral Resources Program; (2) California Geological Survey; (3) San Bernardino Valley Municipal Water District provided funding support for database development; (4) U.S. Forest Service (San Bernardino National Forest). Mr. Raj Daniel of the San Bernardino National Forest facilitated funding support of this database.
The geologic database for the Yucaipa quadrangle was developed as a contribution to the National Cooperative Geologic Mapping Program's National Geologic Map Database, and is intended to provide a general geologic setting of the quadrangle. The Yucaipa database provides information about geologic materials and structures, including the modern trace of the San Andreas fault and associated faults that have developed in the map area due to complexities in the San Andreas stress field.
Geologic information contained in the Yucaipa database is general-purpose data that are applicable to land-related investigations in the earth and biological sciences. The term "general-purpose" means that all geologic-feature classes have minimal information content adequate to characterize their general geologic characteristics and to interpret their general geologic history. However, no single feature class may have enough information to definitively characterize its properties and origin. For this reason the database cannot be used for site-specific geologic evaluations, although it can be used to plan and guide investigations at the site-specific level.
U.S. Geological Survey, 1967, photorevised 1980, Topographic basemap of the Yucaipa quadrangle, southern California: U.S. Geological Survey, Reston, Virginia.
Pictorial Crafts, Inc. (contracted to the U.S. Geological Survey), 1975, Pictorial Crafts aerial photography.
U.S. Department of Agriculture, Agricultural Stabilization and Conservation Service, 1952, U.S. Department of Agriculture, Agricultural Stabilization and Conservation Service, 1952 photography (Symbol AXM, AXL).
U.S. Department of Interior, Geological Survey, 1966, U.S. Department of Interior, Geological Survey 1966 photography (symbol GS-VBNS).
U.S. Department of Agriculture, Agricultural Stabilization and Conservation Service, 1938, U.S. Department of Agriculture, Agricultural Stabilization and Conservation Service, 1938 photography (Symbol AXM, AXL).
Spence Airplane Photos, Los Angeles (flown under contract to the U.S. Geological Survey), 1930, Spence aerial photography, 1930.
Matti, J.C., Morton, D.M., Cox, B.F., Carson, S.E., and Yetter, T.J., 1992, Geologic map of the Yucaipa quadrangle, southern California: U.S. Geological Survey Open-File Report 92-445.
Smith, R. E., 1959, Geology of the Mill Creek area, San Bernardino County, California: University of California, Los Angeles, California.
Person who carried out this activity:
Matti, Jonathan C., Morton, Douglas M., Cox, Brett F., and Kendrick, Katherine J., 2003, Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California: U.S. Geological Survey Open-File Report 03-302, U.S. Geological Survey, Menlo Park, California.
The combination of detailed and reconnaissance techniques used to generate the Yucaipa
quadrangle database yielded a data set whose quality necessarily varies from location to
location. Some areas were examined in great detail in order to solve specific geologic
problems or to clarify the description or geologic relations of a particular map unit.
Other areas were examined less carefully or were not examined at all. As a result, some
parts of the Yucaipa data set have greater attribute accuracy and attribute confidence
The attribute-accuracy statement for the Yuciapa database incorporates four elements: (1) map-unit description and attribution, (2) geotechnical standards against which the observations are measured, (3) map-unit identification, and (4) description of linear and planar geologic structures.
Map-unit description and attribution:
Geologic-map units in the Yucaipa quadrangle database were described using standard field methods (see Process_Description 1 of 6). Consistent with these methods and consistent with the time available to assemble the data set, the database authors have assigned standard geologic attributes to geologic lines, points, and polygons identified in the database.
Geotechnical standards for geologic descriptions:
Plutonic rock classification: Plutonic rocks and their deformed equivalents are classified in accordance with the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1973; Streckeisen, 1976).
Sedimentary rock classifications: Sandstones are classified in accordance with the scheme suggested by Friedman and Sanders (1978, Table 7-4). For all sedimentary materials, bedding-thickness classification follows Ingram (1954) and grain-size classification follows Wentworth (1922).
Surficial-materials classification: Surficial materials are mapped and classified according to a southern California-wide classification scheme being developed by the Southern California Areal Mapping Project (SCAMP).
Terminology for slope-failure deposits (landslides and other slope-failure types) follows Varnes (1978).
Color classification: The matrix color of surficial materials and their pedogenic soils is classified according to the Munsell soil-color charts (Munsell, 1975). Bedrock colors also are classified according to the Munsell system, supplemented by the Rock-Color Chart distributed by the Geological Society of America (reprinted 1970).
Geologic-map units in the Yucaipa quadrangle represent packages of geologic materials whose overall physical properties differ sufficiently from other such units as to constitute discrete mappable entities. From localities where map units in the quadrangle first were recognized and defined, they were extended to other areas through a mapping process that includes (a) direct outcrop observation, (b) interpretation of subsurface boring logs, and (c) aerial-photographic extrapolation into areas where site observation was not conducted. The data contained in the coverage yuc_obs indicates the density of observation and data localities in the Yucaipa quadrangle, and is a measure of whether a map unit at a particular location was identified on the basis of hands-on data or extrapolation.
Map-unit boundaries (geologic contacts) and faults identified along mapping traverses typically were extended laterally by using aerial photographs and binoculars to project or interpolate the contact or fault to its next recorded occurrence along a nearby traverse. Only rarely were individual geologic contacts or fault lines walked out to determine their variability and character throughout the map area. The bounding contacts of each surficial unit and the location of fault scarps that traverse the units were plotted by using a PG-2 photogrammetric plotter that allows location accuracy equivalent to the accuracy standard for the topographic-contour base.
Description of geologic structures
Geologic structures (planar structures displayed as lines, and structures at specific points) in the Yucaipa quadrangle are described and attributed according to the scheme described by Matti and others (1997a,b). These classifications generally follow conventional schemes for classifying geologic lines and points (Reynolds and others, 1995).
For digital version 1.0 of the database, the coverage yuc_obs is a proxy for attribute confidence: the number of direct observations within a map unit from place to place in the quadrangle proxies for the confidence with which the unit and its attributes are believed to be accurately identified. Future releases of the Yucaipa data set will delineate a more objective, empirical basis for map-unit identification and attribute accuracy (map-unit and attribute confidence).
Friedman, G.M., and Sanders, J.E., 1978, Principles of sedimentology: New York, John Wiley & Sons, 792 p.
Ingram, R.L., 1954, Terminology for the thickness of stratification and parting units in sedimentary rocks: Geological Society of America Bulletin, v. 65, p. 937-938.
International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks, 1973, Plutonic rocks: Geotimes, v. 18, no. 10, p. 26-30.
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
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
Munsell Color, 1975, Munsell soil color charts, 1975 edition Baltimore, Maryland, Macbeth Division of Kollmorgen Corporation.
Reynolds, M.W., Queen, J.E., and Taylor, R.B., 1995, Cartographic and digital standard for geologic map information: U.S. Geological Survey Open-File Report 95-525
Streckeisen A., 1976, To each plutonic rock its proper name: Earth Science Reviews, v. 12, p. 1-33.
Varnes, D.J., 1978, Slope movement types and processes, in Schuster, R.L., and Krizek, R.J., eds., Landslides: analysis and control: Washington, D.C., Transportation Research Board, National Academy of Sciences, Special Report 176, p. 11-33.
Wentworth, C.K., 1922, A scale of grade and class terms for clastic sediments: Journal of Geology, v. 30, p. 377-392.
Nationwide geologic-map accuracy standards for geologic line and point features have not
been developed and adopted by the U.S. Geological Survey and other earth-science
entities. Until such standards are developed, the Southern California Areal Mapping
Project (SCAMP) uses internal map-accuracy standards for 1:24,000-scale geologic maps
produced by the project.
In the Yucaipa 1:24,000 scale quadrangle, geologic lines are judged to meet the map-accuracy standard if they are located to within ˜+/-15 meters relative to topographic or cultural features on the base map. Within the database, line data that are judged to meet the map-accuracy standard are denoted in the data table lines.rel by the attribute code .MEE. (meets); line data that may not meet the map-accuracy standard are denoted by the attribute code .MNM. (may not meet). On geologic-map plots and other plots generated from the geologic database, line data that are judged to meet the map-accuracy standard are denoted by solid lines; line data that may not meet the map-accuracy standard are denoted by dashed or dotted lines.
In the database and on geologic-map plots, no cartographic device exists for denoting the map-accuracy for geologic-point data (symbols for bedding, foliation, lineations, etc.).
Three sources of positional error exist for geologic elements in the Yucaipa quadrangle database:
(1) Positional accuracy of field observations: observation stations (data localities) were located either on aerial photographs or on the topographic basemap of the Yucaipa quadrangle by referencing hypsographic and planimetric features on the basemap.
(2) Transfer of line and point data from aerial photographs to the topographic base: For bedrock geologic materials, point data, contacts, and faults were visually transferred to scale-stable copies of the topographic base map. For most surficial geologic materials, geologic contacts and fault scarps were transferred to the base map through the use of a PG-2 sterographic plotter that allows geologic elements to be located with an accuracy and precision equivalent to the standard for the topographic-contour base.
(3) Positional fidelity during digital data processing: the maximum transformation Root Mean Square (RMS) error acceptable for 7.5' quadrangle transformation and data input is 0.003 (1.8 meters). The horizontal positional accuracy of line and point entities was checked by visual comparison of hard-copy plots with base-stable source data.
The geologic map and digital database of the Yucaipa 7.5' quadrangle contain new data
that have been subjected to scientific peer review and are a substantially complete
representation of the current state of knowledge concerning the geology of the
Information for geologic units, geologic contacts, and faults by necessity is generalized. Although derived from data collected at individual observation stations, the characteristics of map units, their bounding contacts, and faults have been averaged and reduced to attributes that describe each map unit and each line element as a whole. This averaging process is necessary because of the intrinsic variability that geologic units, contacts, and faults display spatially: in detail, their characteristics necessarily vary geographically, although certain core attributes persist. To account for this variability and yet still characterize the major defining attributes of geologic entities, the database authors have selected and archived certain geologic characteristics but omitted others. In such cases, details were sacrificed in the interest of defining the average character of the geologic features.
Map-unit completeness: For map-unit polygons, version 1.0 of the Yucaipa database does not exploit the full potential afforded by the data-model and attribute scheme proposed by Matti and others (1997a). The file yuc_geo.pat contains limited information about polygon themes such as geologic name and the thickness of geologic-map units, as well as information about unique attributes that distinguish a map unit within a polygon or a particular subset of polygons. Additional lithologic-attribute data are available in the INFO data table yuc_summ.rel, including age-related data and major rock type. Other than this minimal information, however, the Yucaipa database for geologic-map units (yuc_geo) lacks the comprehensive information content of the .pdf files (yuc_dmu.pdf and yuc_cmu.pdf).
Line and Point Completeness: For line and point data, the Yucaipa database exploits the attribution scheme proposed by Matti and others (1997a,b). This scheme allows geologic elements represented as lines (geologic contacts, faults, fold axes, geomorphic features) and points (bedding orientations, foliation orientations, fault dips) to be assigned a full spectrum of attributes ranging from contact and fault type to geologic age of linear and point features. Some of these attributes are embedded directly within the line and point data bases (.aat and .pat, respectively). Most line and point attributes are stored as codes in two INFO data tables (lines.rel and points.rel).
A complete description of the SCAMP polygon, line, and point data coding schemes is available in U.S. Geological Survey Open-File Reports OF-97-859, OF-97-860, and OF-97-861 (full source citations follow):
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 URL:<http://geopubs.wr.usgs.gov/wgmt/scamp/scamp.html>
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 URL:<http://geopubs.wr.usgs.gov/wgmt/scamp/scamp.html>
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 URL:<http://geopubs.wr.usgs.gov/wgmt/scamp/scamp.html>
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 that are themselves a set of sequentially numbered coordinate pairs. Point data are represented by coordinate pairs.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- The Yucaipa 7.5' geologic-map database should be used to evaluate and understand the geologic character of the Yucaipa quadrangle as a whole. It should not be used as a detailed map for purposes of site-specific land-use planning or site-specific geologic evaluations.
The database is sufficiently detailed to identify and characterize many actual and potential geologic hazards represented by faults and landslides and posed by ground subsidence and earthquake-generated ground shaking. However, it is not sufficiently detailed for site-specific determinations or evaluations of these features. Faults shown do not take the place of fault-rupture hazard zones designated by the California State Geologist (see Hart, 1988).
Use of the Yucaipa geologic-map database should not violate the spatial resolution of the data. Although the digital form of the data allows the scale to be manipulated at the discretion of the user, detail and accuracy issues that are inherent to map-scale limitations similarly exist in the digital data. The fact that this database was constructed and edited at a scale of 1:24,000 means that higher-resolution data generally are not present in the dataset. Therefore, plotting at scales larger than 1:24,000 will not yield greater, real detail, although enlarged plots may reveal fine-scale (artificial) irregularities beyond the intended resolution of the database. Although higher-resolution data may be incorporated at a few places, the resolution of the entire database output is limited by the lower-resolution data.
Hart, E. W., 1988, Fault-rupture zones in California; Alquist-Priolo Special Studies Zones Act of 1972 with index to special studies zones maps: California Division of Mines and Geology Special Publication 42
USGS Open-File Report 03-301
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 the delivery, installation, operation, or support by USGS.
This digital, geologic map database of the Yucaipa 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).
|Data format:||Geologic units and structural features in format ArcInfo export (version 7.2.1) Size: 2.1 megabytes|