Explore the 3DEP Viewer for accessing and visualizing high-resolution digital elevation models provided by The National Map. Download data from The National Map including elevation, imagery, boundaries, transportation, and more. Help Pages link - Links to these Help pages covering the 3D Viewer. Explore the National Map's 3D Viewer for interactive mapping, elevation profiles, and range ring centroids. Click on the map to establish the range ring centroid. The National Map (TNM) Download Application is built on modern web technologies and features a simplified approach to downloading products from The National Map. Users may establish an Area of Interest by zooming/panning in the map, drawing a box, dropping a point, or selecting a polygon. One or more datasets may be selected with desired product extents and formats. Preview and Availability. Welcome to Trails Explorer Trails Explorer helps you discover USGS aggregated trails across the nation. To get started, simply search for a place or an address using the box in the top‑left corner. Once you select a location, the map will zoom in and display nearby trails and related information. The trails information displayed here is sourced from multiple official datasets. It represents. The availability information is based on the Lidar Point Cloud layer from the 3DEPElevationIndex map service. The source data used by this service is described under the Spatial Metadata heading on the 3DEP Product Metadata page and is available for download as a GeoPackage GIS data file. Query Type: Select a query type. Lidar Point Cloud By State Lidar Cloud Quality Lidar Point Cloud Published Since Lidar Point Cloud By Name Lidar Point Cloud by Workunit Lidar Point Cloud by Workunit ID The USGS Historical Topographic Map Collection (HTMC) includes maps in GeoTIFF and Geospatial PDF/GeoPDF formats. The HTMC provides a comprehensive digital repository of all scales and editions of topographic maps published by the USGS since the inception of the topographic mapping program in 1884.