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From the topoView web site description: TopoView highlights one of the USGS's most important and useful products, the topographic map. In 1879, the USGS began to map the Nation's topography. This mapping was done at different levels of detail, in order to support various land use and other purposes. As the years passed, the USGS produced new map versions of each area. The most current maps are available from The National Map. TopoView shows the many and varied older maps of each area, and so is useful for historical purposes—for example, the names of some natural and cultural features have changed over time, and the 'old' names can be found on these historical topographic maps. This interface was created by the...
Map of the alluvial valley of the Mississippi River from the head of St. Francis Basin to the Gulf of Mexico, showing lands subject to overflow, location of levees and trans-alluvial profiles Downloaded from: https://www.digitalcommonwealth.org/search/commonwealth:7h14b0450 Edited (to correct position of panels) and georeferenced by Yvonne Allen (USFWS) to geographic NAD1927 using ArcGIS , 3rd order polynomial and 80 ground control points using lat lon grid only. RMS=0.00408 SERVICE DEFINITION FILE ONLY For Geographic NAD 27 geotiff see: https://www.sciencebase.gov/catalog/item/58f66491e4b0bd52222f7821
Technical support provided to the Western Native Trout Intititive to develop GIS web services and maps
This map shows the potential current distribution of Peregrine Falcon, in the context of current and near-term terrestrial intactness and long-term potential for climate change and energy development.
Colorado Plateau REA MQ H1: Where are high-use recreation sites, developments, roads, infrastructure or areas of intensive recreation use located (including boating)?
This map shows areas of high-use recreation, including recreation sites compiled from USFS and BLM, recreation areas (including OHV areas), water-based recreation areas (selected from NHD waterbodies), water-based recreation travel corridors (selected from NHD flowlines), and land-based recreation travel corridors (selected from BLM GTLF within federal / state lands and national trails).
This map shows the location of HMAs, in the context of current and near-term terrestrial intactness and long-term potential for climate change and energy development.
This map shows the location of major aquatic invasive species, compiled primarily from the USGS Nonindigenous Aquatic Invasives database.
The GAP/LANDFIRE National Terrestrial Ecosystems represents a highly thematically detailed land cover map of the U.S. The GAP/LANDFIRE National Terrestrial Ecosystems dataset is produced by the U.S. Geological Survey in collaboration with the LANDFIRE Program. The GAP produces data and tools that help meet critical national challenges such as biodiversity conservation, renewable energy development, climate change adaptation, and infrastructure investment. Learn more about GAP and other GAP data (including protected areas and species habitat maps) at https://gapanalysis.usgs.gov. GAP/LANDFIRE data download and metadata: https://gapanalysis.usgs.gov/gaplandcover/data
These files contain scans of Topographic Reconnaissance maps of Antarctica. The source maps were published at 1:250,000-scale by the U.S. Geological Survey in cooperation with the National Science Foundation. The extent of their coverage can be seen in the “Topographic Reconnaissance Index - 250k” layer of the Atlas of Antarctic Research viewer. Use the “VIEW” link below to look at a low resolution version of the map. Then download the selected map at full resolution by clicking the download link. The metadata for each of the maps is contained in the “Full Map”download file. The maps were scanned at a ground resolution of 25.4 meters and range from 10 to 30 megabytes.They are provided in two formats: Full Map ...
Flightline Photo Indexes of Antarctica Topographic Reconnaissance with Shaded Relief 1:250,000 Scale - Basic Contour Interval, 200 Meters Flight line information is approximate up to 200 meters.