U.S. Geological Survey
20180926
USGS US Topo 7.5-minute map for Bouldin Island, CA 2018
map, raster digital data
Rolla, MO and Denver, CO
USGS - National Geospatial Technical Operations Center (NGTOC)
U.S. Geological Survey
2021
US Topo Historical
https://www.sciencebase.gov/catalog/item/5061bc99e4b0ce47085a8d03
Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
This map depicts geographic features on the surface of the earth. It is a general purpose map for users who are not GIS experts. One intended purpose is to support emergency response at all levels of government.
GNIS Cell ID = 69422; {"inventory":"95c41fb6-8710-9340-5189-54287461db68","cellId":69422,"scale":24000,"pageWidth":24,"pageHeight":29}
19810119
20180612
publication date
Irregular
-121.5
-121.625
38.125
38.0
ISO 19115 Topic Category
imageryBaseMapsEarthCover
EarthCover
Imagery and Base Maps
None
topographic
transportation
structures
geographic names
hydrography
boundary
Public Land Survey System
woodland
orthoimage
contour
U.S. National Grid
The National Map Product Format Thesaurus
Geospatial PDF
Geographic Names Information System
US
California
Contra Costa County
Sacramento County
San Joaquin County
None
Bouldin Island, CA
The National Map Type Thesaurus
Downloadable Data
The National Map Theme Thesaurus
Map
The National Map Collection Thesaurus
US Topo Historical
US Topo
The National Map Product Extent Thesaurus
7.5 x 7.5 minute
The National Map Product Format Thesaurus
Geospatial PDF
None
This product may be freely copied, redistributed, and printed. Most content is derived from public domain data with no reuse constraints. The primary exceptions are the orthoimage layers for maps in Alaska and Hawaii, which are copyrighted and have some reuse restrictions; see the relevant data source sections (srcinfo tag) in this file. US Topo maps with dates 2010-2015 may contain commercial road data that is also copyrighted with use restrictions; see the credit note and metadata file for individual products. Even maps that contain copyrighted data may be freely used and redistributed, provided the appropriate copyright notices are retained; normal fair-use principles apply. Users should be aware that temporal changes may have occurred since these data were collected and some data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgment of the U.S. Geological Survey is appreciated for products derived from these data.
https://prd-tnm.s3.amazonaws.com/StagedProducts/Maps/USTopo/PDF/CA/CA_Bouldin_Island_20180926_TM_tn.jpg
Thumbnail JPG image of map
JPEG
Cartographic content is derived from USGS national geospatial databases. Most the data are owned and hosted by the USGS, but this does not preclude using data sources owned or hosted by other organizations, provided that these sources have been approved by the USGS data program.
This product is a layered geospatial PDF file.
Each PDF layer is derived from data extracted from USGS national geospatial databases. These data are intended to be cartographically complete at 1:24,000 scale.
This US Topo map product is compiled to meet National Map Accuracy Standards (NMAS). NMAS horizontal accuracy requires that at least 90 percent of well-defined points tested are within 0.02 inch of the true position. In this product, the projection line, grids, and orthoimage are believed to meet NMAS. Positional accuracy of the other data layers is less controllable because of diversity of data sources, and may not meet NMAS. However, other vector layers do generally register well with the orthoimage, which is evidence that the overall accuracy is close to meeting NMAS.
Vertical accuracy report: US Topo contours are derived from the USGS 3D Elevation Program (3DEP) 1/3 arc-second DEM data. Accuracy of 3DEP is inherited from various sources. These data sources vary in vertical accuracy depending on time of collection, collection method, control accuracy and density, and local terrain relief. The overall absolute vertical accuracy of the 1/3 arcsecond DEM data, as tested against GPS control, is about 3 meters at 95% confidence level (National Standards for Spatial Data Accuracy). US Topo contours are derived from the DEMs to generally meet National Map Accuracy Standards (90% of well-defined points in reasonably level terrain test within one-half contour interval of the true ground elevation); however, actual vertical accuracies of individual US Topo quadrangles may not meet that standard. Quadrangles containing collar notes stating contours "May not meet National Map Accuracy Standards" are in areas where the source is known to be questionable for meeting NMAS for the stated contour interval.
For the conterminous 48 states - National Agriculture Image Program (NAIP) administered by the Aerial Photography Field Office (APFO) for the United States Department of Agriculture.
Publication Date
Orthoimagery - CONUS
Raster digital data or Digital Orthorectified Image or NAIP Digital Ortho Photo Image or Raster digital data or Digital Orthorectified Image
An orthorectified image is a layer in every product and is provided by the USDA-FSA-APFO from the National Agriculture Image Program (NAIP) in the conterminous US. This offers the USGS a consistent image product for the conterminous 48 states, normally with a one meter resolution in natural color, though resolution varies by collection date, and higher-res source data may be downsampled to 1 or 1.5 meter resolution for US Topo maps. The NAIP image in this product is public domain with no reuse constraints.
https://www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/
24000
digital data
20160527
20161004
publication date
Imagery
Image
U.S. Census Bureau, Geography Division
2014
Transportation, Census Roads
vector digital data
Dataset source is Census Bureau MAF/TIGER database extracts in the form of TIGER/Line Shapefiles. The TIGER/Line shapefiles and related database files are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent dataset, or they can be combined to cover the entire nation. The U.S. Geological Survey filters Census roads to remove short road segments which are less than 500 feet in length, are not named and are classified as local roads. The USGS National Transportation Dataset functional road classification system is applied to the Census datasets. The original TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. The horizontal spatial accuracy information present in the TIGER/Line shapefiles is provided for the purposes of statistical analysis and census operations only and the data may not be suitable for high-precision measurement applications. Full metadata for TIGER/Line shapefiles is available from U.S. Census Bureau
http://www.census.gov/geo/maps-data/data/tiger.html
24000
digital data
20161006
20161006
publication date
Roads - Census
Road centerlines, route numbers, road classification, street names
Alaska Department of Transportation
2013
Transportation, public domain roads
Vector digital data
This record applies to Alaska data only. Roads gathered from various state and local sources, integrated by the Alaska Department of Transportation (ADOT) and provided to USGS for use in USGS map products. This specific road dataset is unpublished, but earlier versions are published on the ADOT web site.
http://www.dot.state.ak.us/stwdplng/mapping/
25000
digital data
20161006
20161006
publication date
Roads - Alaska Department of Transportation
Road centerlines, road classification, street names
Federal land management agencies
2016
Points of Interest
vector digital data
Includes campgrounds, trailheads, visitor centers. Point data was provided by various federal agencies, such as NPS, US Forest Service, BLM, US FWS.
http://nationalmap.usgs.gov
24000
digital data
2016
2016
ground condition
Structures - various
Geographic features and feature names
U.S. Geological Survey
Publication Date
Geographic Names Information System (GNIS)
Vector digital data
The Geographic Names Information System (GNIS) is the Federal and national standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS in support of the U.S. Board on Geographic Names as the official repository of domestic geographic names data, the official vehicle for geographic names use by all departments of the Federal Government, and the source for applying geographic names to Federal electronic and printed products.
http://geonames.usgs.gov/
24000
digital data
19810119
20160907
publication date
Geographic Names
Geographic feature names
U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners. National Hydrography Dataset is a component of a comprehensive base geospatial data model.
20100820
Hydrography
vector digital data
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. The high-resolution NHD was originally created using 1:24,000-scale data. State and Local Stewards are improving the data by incorporating local updates based on more current and more accurate source data. Water features in the real world are relatively dynamic and the differences at the time of data collection mean that water features may not register exactly to other layers. The hydrographic feature names contained in and displayed by the NHD are extracted and validated from the Geographic Names Information System (GNIS). Spatial objects may be filtered or generalized to achieve a 1:24,000-scale representation.
http://nhd.usgs.gov/
http://nhd.usgs.gov/gnis.html
http://nhdgeo.usgs.gov/metadata/nhd_high.htm
24000
digital data
20030925
20180612
publication date
Hydrography
Hydrography features and feature names
Global Land Ice Measurements from Space initiative (GLIMS)
2011
Gaging Stations
vector digital data
This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Only active stations, as identified by the GAGES II dataset, are symbolized.
http://water.usgs.gov/lookup/getspatial?gagesII_Sept2011
http://water.usgs.gov/GIS/metadata/usgswrd/XML/gagesII_Sept2011.xml
24000
digital data
20061113
20061113
publication date
Hydrography - Gaging Stations
Hydrography features and gaging stations
U.S. Fish and Wildlife Service
Publication Date
Wetlands - Emergent and Forest/Shrub
vector digital data
This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. While the Fish and Wildlife Service produces a variety of wetland categories, only two (Emergent and Forest/Shrub wetlands as defined by Cowardin et al. (1979)) are included on US Topo Maps.The emergent wetlands depicted do not include lakes, rivers, open water ponds, deepwater marine and estuarine features or non-vegetated, farmed, intermittent and temporarily flooded wetlands. The goal is to provide a visual depiction of the approximate location and extent of Emergent and Forest/Shrub wetlands. Digital wetlands data are intended for use with base maps and digital aerial photography at a scale of 1:12,000 or smaller. Due to the scale, the primary intended use is for data display on the US Topo Maps. This data display is not intended for analysis. The map products were neither designed or intended to represent legal or regulatory products. Questions or comments regarding the interpretation or classification of wetlands can be addressed by visiting http://www.fws.gov/wetlands/FAQs.html These data were developed in conjunction with the publication Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Department of the Interior, Fish and Wildlife Service, Washington, DC. FWS/OBS-79/31. For more information on the wetland classification codes visit http://www.fws.gov/wetlands/Data/Wetland-Codes.html. Note that coastline delineations were drawn to follow the extent of wetland features as described by this project and may not match the coastline shown in other base maps.
http://www.fws.gov/wetlands/
http://www.fws.gov/wetlands/FAQs.html
http://www.fws.gov/wetlands/Data/Wetland-Codes.html
digital data
19850401
19850401
publication date
Wetlands - Emergent and Forest/Shrub
Spatial information
Global Land Ice Measurements from Space initiative (GLIMS)
2011
Gaging Stations
vector digital data
This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Only active stations, as identified by the GAGES II dataset, are symbolized.
http://water.usgs.gov/lookup/getspatial?gagesII_Sept2011
http://water.usgs.gov/GIS/metadata/usgswrd/XML/gagesII_Sept2011.xml
24000
digital data
20061113
20061113
publication date
Hydrography - Gaging Stations
Hydrography features and gaging stations
U.S. Census Bureau
20140401
State and Equivalent Boundary
vector digital data
The Census Bureau collects boundaries from state and county governments through the Boundary and Annexation Survey, and publishes the results as TIGER files. The USGS uses the TIGER data without editing or alteration.
http://www.census.gov/geo/maps-data/data/tiger.html
digital data
20170928
20170928
publication date
State Boundaries
State and Equivalent Boundary
U.S. Census Bureau
2014
County and Equivalent Boundary
vector digital data
The Census Bureau collects boundaries from state and county governments through the Boundary and Annexation Survey (BAS), and publishes the results as TIGER files. The USGS uses the TIGER data without editing or alteration for US Topo.
http://www.census.gov/geo/maps-data/data/tiger.html
digital data
20160601
20170501
publication date
County Boundaries
County and Equivalent Boundary
U.S. Geological Survey, National Geospatial Technical Operations Center - National Elevation Dataset is a component of a comprehensive base geospatial data model.
20020401
Hypsography
Vector digital data
This contour featureclass was generated from the 1/3 arc-second version of the 3D Elevation Program. The intended viewing scale for these features is 1:24,000. The contours are derived from a filtered elevation raster to achieve smoother arcs. In some areas, the 3DEP data may be modified by the National Hydrography Dataset (NHD) flow lines and water bodies to facilitate improved integration between the hypsography and hydrography on USGS map products. These contours were generated primarily for use as a layer in GeoPDFs created in the digital mapping program. The raster data source of contours is the 3D Elevation Program 1/3 arc-second layer. Secondary datasets include the high resolution flow lines, water bodies, and areas from the National Hydrography Dataset (NHD). The NHD layers are used in hydro-enforcement of the DEM prior to contour generation. The goals of the hydro-enforcement are to prevent contour lines from extending over the surface of water bodies and to align the contour reentrants with the NHD single- line streams. The 3DEP raster cells are converted to points. Those points, along with the NHD flow lines are input into an interpolation tool to create a new surface. The NHD water bodies and areas are preprocessed to attach the minimum and maximum elevation to each polygon. From these precalculated values, an appropriate value is calculated by which to raise the elevation cells under the NHD polygons. The NHD polygons are then converted into rasters, which in turn will be used to generate a mosaic that includes the new raster surface. The mosaic is filtered to provide smoother contour lines. Contours are generated and depression and index contours are identified. There is no guarantee or warranty concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since these data were collected and generated and that some parts of these data may no longer represent actual surface conditions. Hydro-enforcement and generalization can also significantly alter the spatial characteristics of the contours. Users should not use these data for critical applications without a full awareness of its limitations.
http://Hs.gov/
24000
digital data
20051001
20051201
publication date
Hypsography
Contours
U.S. Geological Survey
2016
Land Cover - Woodland
Vector digital data
The Woodland Tint is a derivative land cover product created using several national map layers: three National Land Cover Database (NLCD) 2011 raster layers (Tree Canopy, Imperviousness, and Land Cover); and two vector layers (National Hydrography Dataset and Transportation). The process begins with masking the NLCD 2011 Tree Canopy Data cartographic with NLCD 2011 Imperviousness (values from 1-100), and NLCD 2011 Land Cover (value 11 = Open Water). The resulting raster data with canopy values of 20 and greater are converted to woodland vector polygons and smoothed via the Paek Algorithm. The woodland polygons are masked with buffered Transportation (Roads, Airport Runways, and Railroads) and Hydrography (NHD Areas excluding Inundation Area and NHD Waterbodies excluding Swamp/Marsh). The resulting polygons are checked for scale appropriate size (minimum size of one acre), and the small woodland polygons as well as small clearings within the woodland polygons are deleted. For Hawaii and Puerto Rico, two National Land Cover Database (NLCD) raster layers (Tree Canopy 2011 and Imperviousness 2001): and two vector layers(National Hydrography Dataset and Transportation) are used. The resulting raster data is carried out as before to produce the polygon vector data. For Alaska, the Woodland Tint is a derivative land cover product created using five national map layers: one raster layer, National Land Cover Database (NLCD) 2011 (Land Cover); and four vector layers (National Hydrography Dataset, Transportation Roads, Transportation Airports and Transportation Railroads). The process begins with combining three NLCD 2011 Land Cover V1 Classes (41 - Deciduous Forest, 42 - Evergreen Forest, and 43 - Mixed Forest). The resulting raster data was converted to woodland vector polygons, and smoothed via the Paek Algorithm. The woodland polygons are masked with buffered Transportation (Roads, Airport Runways, and Railroads) and Hydrography (NHD Areas excluding Inundation Areas and NHD Waterbodies excluding Swamp/Marsh). The resulting polygons are checked for scale appropriate size (minimum size of one acre), and the small woodland polygons as well as small clearings within the woodland polygons are deleted.
http://nationalmap.gov
https://www.mrlc.gov/nlcd2011.php
24000
digital data
20010101
20110101
publication date
Land Cover - Woodland
National Landcover Dataset; National Hydrography Dataset; National Transportation Dataset
U.S. Geological Survey
Publication Date
Shaded Relief
raster digital data
The Shaded relief is a derivative elevation product created from the USGS 3D Elevation Program (3DEP) 1/3 arc-second DEM data. First there are five separate shaded relief datasets created from the original data. Each shaded relief has different azimuths and altitude values as follows: 00 450, 1350 600, 2700 450, 3150 450, 450 450. These five datasets are then combined into one feature class using map algebra to compute the raster layers using the following equation shadedrelief1 + shadedrelief2 + shadedrelief3 + (shadedrelief4 x 2) + shaded relief5 \ 6. This equation gives double importance to the 3150 azimuth and 450 elevation.
24000
digital data
19970101
19970101
publication date
Shaded Relief
3D Elevation Program
U.S. Geological Survey
Publication Date
Grids and Coordinate System
Geographic Coordinate, U.S. National Grid, and UTM grid values are displayed along the map projection.
24000
raster data
Publication Date
Publication Date
publication date
Grids and Coordinate Systems
U.S. National Grid, UTM grid.
Grids and coordinate system annotation are computed for US Topo maps with Esri ArcGIS software.
20180926
Raster
Universal Transverse Mercator
10
0.9996
-122.99
0.0
500000
0.0
coordinate pair
2
2
meters
North American Datum of 1983
Geodetic Reference System 80
6378137
298.2572221
North American Vertical Datum of 1988
3
meters
Explicit elevation coordinate included with horizontal coordinates
This is a general-purpose design and layout quadrangle map based on the traditional USGS quadrangle cells. The domain is a standard 7.5-minute cell. The scale is 1:24,000.
National Geospatial Program US Topo Product Standard, 2011.
U.S. Geological Survey
mailing and physical
Box 25046 Denver Federal Center
Lakewood
CO
80225
1-888-ASK-USGS (1-888-275-8747)
usgsstore@usgs.gov
Downloadable Data
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Geospatial PDF
36.818583
https://prd-tnm.s3.amazonaws.com/StagedProducts/Maps/USTopo/PDF/CA/CA_Bouldin_Island_20180926_TM_geo.pdf
None
20220106
U.S. Geological Survey, National Geospatial Technical Operations Center
Not Provided
mailing and physical
1400 Independence Road
Rolla
MO
65401
mailing and physical
Box 25046 Denver Federal Center
Lakewood
CO
80225
1-888-ASK-USGS (1-888-275-8747)
http://www.usgs.gov/ask/
Monday through Friday 8:00 AM to 4:00 PM
Metadata information can also be obtained through online services using The National Map Viewer, at http://nationalmap.gov or EarthExplorer, at http://earthexplorer.usgs.gov or Ask USGS at http://www.usgs.gov/ask.
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998