Web Tools
Listed below are some of the most commonly accessed web tools associated with The National Map.
LidarExplorer
An online application that allows users to search and visualize Light Detection and Ranging (lidar) and its derived products. Users can find lidar, DEM, topobathymetric, and orthorectified radar image (ORI) data. The application uses Entwine Point Tile (EPT) format to help visualize projects in a web-based 3D viewer for quick views of the data. It also allows for cloud processing
topoBuilder - Custom Topographic Maps On Demand
topoBuilder is a public web application released by the National Geospatial Program that enables users to request customized USGS-style topographic maps, known as an OnDemand Topo, that utilize the best available data from The National Map.
Geographic Names Information System (GNIS)
The U.S. Geological Survey's National Geospatial Program 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.
Download Data & Maps from The National Map
The National Map Downloader is the primary search and download application for USGS topographic maps and base-layer GIS data.
The National Map Viewer
Use The National Map Viewer to explore GIS data, see availability of USGS topographic maps, and create your own web map.
topoView
topoView is an easy-to-use application for browsing the Historical Topographic Map Collection and US Topo maps