This video shows you how to find the usgs topo map for your project. Usgs map of the principal aquifers of the united states. Unless you want topo maps in alaska, they are based on 1. Geological survey usgs with a horizontal grid spacing of 30 arc seconds approximately 1 kilometer. Gtopo30 digital elevation model dem data available from the u. Let us know how we can continue to improve access to the usgs topographic map collection. Gtopo30 is a global digital elevation model dem with a horizontal grid spacing of 30 arc seconds approximately 1 kilometer. Locate and download free usgs geopdf maps using the map. These data were by developed by the usgs eros data center in 1996 from a. The usgs earth explorer is a similar tool to the usgs global visualization viewer glovis in that users search catalogs of satellite and aerial imagery usgs. Gtopo30 has been divided into tiles which can be selected from the map. Elevation data 2010 gmted2010 that replaces gtopo30 as the elevation. After 125year legacy of topographic mapping 18842009, the usgs embarked on an innovative future of integrating historical maps with computergenerated maps from a national. Although usgs intends to make this server available 24 hours a day, 7 days a week, timely delivery of data and products from.
Javascript must be enabled to view our earthquake maps. Click the home button to zoom the map out to its original zoom and position. There are three ways to get fullscale plots of usgs topographic quadrangle maps, including both historical topographic maps produced 18842006 and us topo maps produced 2009present. Use the stores map locator to find the desired map. For easier distribution, gtopo30 has been divided into tiles which can be selected from the map shown above. The usgs was entrusted with the responsibility for mapping the country in 1879 and has been the primary civilian mapping agency of the united states ever since. Topographic maps are a signature product of the usgs. The aquifer basics web site provides a general overview and maps of the principal aquifers of the united states by rock type and via alphabetical list. Call usgs customer service at 1888ask usgs 18882758747 or email us. Click on the srtm30 tile to download the digital elevation map dem from the place you select. This makes them handy for use as components in maps showing large areas. According to wikipedia, a digital raster graphic drg is a digital image resulting from scanning a paper usgs. Select a layer under reference polygons show example.
Clicking the map icon in the top right corner will load the map. Usgs topo map download usgs maps for download this interactive map is designed to assist you in downloading the usgs topo map of your choice. To ease the downloadingdistribution, the world map is divided in 33. The global 30arcsecond elevation data set gtopo30 is so named, because. But a download of the agencys cartographical creations, which open in adobe acrobat as pdf files, is as simple and free as a. May, 2020 this is a tiled collection of the 3d elevation program 3dep and is one meter resolution. Gtopo30 was derived from several raster and vector sources of topographic information. How do i find, download, or order topographic maps. Coverage maps indicating the availability of gtopo30 products are available for download.
Clicking the about icon in the top right corner loads this page. Contribute to robbykraft3dearth development by creating an account on github. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and many other map and list options. The usgs earth explorer gives a quick and intuitive way to download free aerial and satellite imagery.
The 3dep data holdings serve as the elevation layer of the national map, and provide foundational elevation information for earth. A global hydrologic database derived from 1996 gtopo30 data. The latest version of topoview includes both current and historical maps and is full of enhancements based on hundreds of your comments and suggestions. Click the play button below to see some of the new features in action. Download usgs maps of arkansas historical, military, ww2. The historical topographic map collection includes published u. Gtopo30 has been divided into tiles which can be selected from the map shown. Historical topographic map collection at the usgs store. Gtopo30 is a global digital elevation model dem with a horizontal grid spacing of. Coverage maps indicating the availability of hydro1k products are available for download. If a product has a downloadable map, you will see a view pdf button beside the product in the product pane. The original data can be downloaded from the gtopo30 home page. Download any usgs topographic map, including many that were created before 1900, from usgs.
Gtopo30 is a global digital elevation model dem resulting from a. Move the cursor over to the layer control show example. Click to go to the collection page for usgs drg maps of all 50 states. Expertgps includes seamless topo map coverage for all of maine. Usgs drg maps for the state of colorado are available here. This tutorial will show you how to download pdfs of usgs topographic maps for free. To be sure, printed maps from the usgs still come with a fee. Any downloading and use of these data signifies a users. National geospatialintelligence agency nga have compiled an enhanced global elevation model named the global multiresolution terrain elevation data 2010 gmted2010 that replaces gtopo30 dataset. Gtopo30 is a global digital elevation data set with a horizontal grid spacing of 30.
On topographicbathymetric maps, contour lines show elevations of the land areas above sea level, and isobaths bathymetric contours show the form of the land below the water surface. Download, customize, and print highresolution usgs topo maps for maine. This article explains how to download the global 30arcsecond. Map calculator in arcview spatial analyst to apply several formulas that will allow. They were essential for integrating and analyzing placebased information, and were widely used by receationalists. Usgs topo map download centre county, pa official website. Click draw point button show example and click a point on the map. You need to take one more step, however, to ensure that this file remains available for future use. And it also has the ability to automatically download and display complete, highresolution scans of every usgs topo map made in the last century.
These maps are best used with global positioning software or a map viewer. For the us topo maps that you want to download, simply click the download button under the cart tab. To access usgs earthquake information without using javascript, use our magnitude 2. Staged productsthe topographic maps and geographical information system gis data provided in the national map are pregenerated into downloadable products often available in multiple formats. The project is part of the usgs national geospatial program ngp continuing efforts to support the mapping and locationbased data needs of the.
Since the time gtopo30 was completed, higher quality elevation data has become available, due to new data sources. How to download usgs topo maps for free gis geography. The usgs has a number of clever ways for users to search, navigate, purchase, and download maps and data the map locator is the latest addition and its pretty darned sweet. Digital elevation model dem data are sampled arrays of surface elevations in. Maps and gis data are available for digital download. The topographic maps and geographical information system gis data provided in the national map are pregenerated into downloadable products often available in multiple formats. From approximately 1947 to 1992, more than 55,000 7. Coverage maps indicating the availability of gmted2010 products are. Download, customize, and print highresolution usgs topo. Usgs eros archive global 30 arcsecond elevation gtopo30. Usgs maps for the state of utah are available here. Color contour map of crustal thickness in the robinson projection. The national hydrography dataset s, watershed boundary dataset, governmental. If the map contains no communities or they are very rural, small, and scattered, it can be named for the most, prominent and centrally located wellknown physical or natural feature.
Although these data have been processed successfully on a computer system at the u. Gtopo30 is a global digital elevation model dem produced by the u. The national hydrography datasets, watershed boundary dataset, governmental boundary units, transportation, structures, elevation contours and geographic. Usgs drg maps for the state of illinois are available here. If you are going to performing analysis on the landsat data, the level 1 geotiff data product is probably the one youre after, which will be the largest file size. Download usgs topographic maps for free 2019 youtube. These usgs maps show in one format and one edition the data for a landwater area previously shown separately as a topographic map and a bathymetric map. Total in map set606 maps of4,0gb updated inmay 2015 added 260 maps. Geological survey generally are named for the most centrally located andor wellknown or largest community named on the map.