USGS US Topo Map Collection

U.S. Geological Survey 2022 USGS US Topo Map Collection map, raster digital data Rolla, MO and Denver, CO USGS - National Geospatial Technical Operations Center (NGTOC) https://www.usgs.gov/the-national-map-data-delivery 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 depicts geographic features on the surface of the earth. One intended purpose is to support emergency response at all levels of government. 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. Bounding Coordinates identified in FGDC metadata and reflect coverage defined by the USGS Cells database. More information available at: https://nationalmap.gov/ustopo/. 2009 present publication date Complete Irregular -179.1666667 -65.0 71.5 17.625 USGS Metadata Identifier USGS:6d94af68-1f05-4f9e-9b5a-63f7a05d258b ISO 19115 Topic Category imageryBaseMapsEarthCover None topographic transportation structures geographic names hydrography boundary Public Land Survey System woodland orthoimage contour U.S. National Grid Geographic Names Information System US United States 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 Users should be aware that temporal changes may have occurred since these data were collected and some data may no longer represent actual surface conditions.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. U.S. Geological Survey mailing and physical

12201 Sunrise Valley Drive, MS 523

Reston Virginia 20192 1-888-ASK-USGS (1-888-275-8747) tnm_help@usgs.gov Monday through Friday 8:00 AM to 4:00 PM Please visit https://answers.usgs.gov/, call 1-888-ASK-USGS or email tnm_help@usgs.gov to contact us. https://ngtoc-metadata.nationalmap.gov/collections/browse/map_ustopo_browse.jpg Thumbnail JPG image JPEG Cartographic content is derived from USGS national geospatial databases. The data is owned and hosted by the USGS, but does not preclude using data sources owned and 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. 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. The geospatial PDFs for this product are created as follows. All geospatial content is taken from national geospatial databases under the stewardship of USGS data programs. The NAIP imagery is provided by a seamless tile service that delivers image data at the resolution and quality of the source imagery. The raster and vector data, including grids and collar information, are processed using ESRI ArcGIS software and exported as a geospatial PDF. application, which includes post-processing to embed the metadata XML document. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. 2022 Raster 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 1-888-275-8747 tnm_help@usgs.gov Monday through Friday 8:00 AM to 4:00 PM Eastern Time Zone USA Please visit https://answers.usgs.gov/, call 1-888-ASK-USGS or email tnm_help@usgs.gov to contact us. 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. PDF Geospatial PDF https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Maps/USTopo/PDF/ None. ArcREST TNM US Topo Availability Web Map Services https://index.nationalmap.gov/arcgis/rest/services/USTopoAvailability/MapServer None. 20230531 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