What is The National Map Structures Tint?

The National Map’s Structures Tint dataset represents manmade structures using broad-area tints rather than defining the exact shape of individual buildings.  

The data was provided by Oak Ridge National Labs and the Federal Emergency Management Agency.

This dataset was introduced in 2021 and is designed for use at the 1:24,000 scale (the standard scale for USGS topographic maps) or smaller. While improvements to spatial accuracy are ongoing, use at larger scales is not advised.  

You can currently access the Structures Tint Dataset through the TNM Basemap. In the future, you will be able to access the data through The National Map Download ClientThe National Map Services, and The National Map Viewer.

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What happened to the Gridfloat, ArcGrid, and IMG formats for elevation data in The National Map?

USGS elevation data available through The National Map was converted to Cloud Optimized Geotiff (COG - GeoTIFF) format in mid-December, 2019. This change was made to improve product processing time, storage, and to support new and evolving cloud processing capabilities. GeoTIFF is a widely supported raster format and is directly useable by most...

How do I download layers in The National Map Viewer?

Base map data layers in  The National Map Viewer  are for viewing only. This application is designed for visualizing data, combining different data layers, and creating (and printing) your own maps. To download data from The National Map, see the link at the top of the Viewer for the Data Downloader .  None of the base map layers in the Viewer are...

At what scales are contours visible in The National Map Viewer?

The 500-foot contours are shown at a scale of 578K in base maps, while 100-foot contours are visible at 289K/144K and 50-foot contours are visible at 72K. Large scale contours from US Topo products are shown from 36K to 18K, and in dynamic base map services for scales larger than 18K.

What are the base map services (or URLs) used in The National Map?

The National Map Services offers a series of composite base maps that combine layers into tile cache services with the cartographic richness of multiple data sources. The following base maps are available: USGS Topo - combines the most current data (boundaries, geographic names, transportation, elevation, hydrography, land cover, and other themes...

Can The National Map data be downloaded via direct links?

Direct access to The National Map data is provided via browsable links through:  Amazon's Cloud USGS Server - https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/ Navigate to the appropriate theme folders to access staged products for download.  Data can also be downloaded using The National Map Download Client , 3DEP LidarExplorer (lidar only),...

How can I submit a question or report issues regarding The National Map products and services?

Submit questions or report issues to The National Map service desk at: tnm_help@usgs.gov
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Date published: October 23, 2019

USGS Digital Elevation Models (DEM) Switching to New Distribution Format

In support of ongoing efforts to provide efficient, cloud ready, open data formats, the U.S. Geological Survey National Geospatial Program is announcing plans to migrate its 3D Elevation Program (3DEP) Digital Elevation Models (DEM) to a new data delivery format called Cloud Optimized Geotiff (COG) during the first half of fiscal year 2020.

Date published: February 7, 2019

USGS 3DEP Lidar Point Cloud Now Available as Amazon Public Dataset

The USGS 3D Elevation Program (3DEP) is excited to announce the availability of a new way to access and process lidar point cloud data from the 3DEP repository.

Date published: August 8, 2018

New Elevation Map Service Available From the USGS 3D Elevation Program

The USGS 3D Elevation Program (3DEP) announces the availability of a new dynamic map service.

Date published: June 26, 2018

The 3D Elevation Program Distributing Lidar Data in LAZ Format

In support of ongoing efforts to provide efficient, cloud ready, open data formats for the use of lidar data, the USGS National Geospatial Program and its associated 3D Elevation Program is transitioning all of its lidar data distribution files to LAZ format by September 30, 2018.

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Columbia, SC in TNM Viewer
April 6, 2020

Example of The National Map Viewer with map of Columbia, SC

This is an example of what a user will see in the The National Map Viewer. The map is zoomed into Columbia, SC.

March 14, 2018

Lesson 4d: The National Map Download Manager Tool

In this lesson you will learn how to download and install uGet. You will also learn how to use uGet to download data and maps from The National Map download Client using URLs saved in a text or CSV file.

Please note that some of our URLs in the video have changed. All URLs beginning with 'viewer.nationalmap.gov/...' have been updated to 'apps.nationalmap.gov/...'.

November 13, 2017

Lesson 3a: The National Map Viewer Interface and Data Content

Lesson 3a: The National Map Viewer Interface and Data Content. In this lesson, we will provide the user with an overview and demonstration of the interface and data content of The National Map Viewer.

Please note that some of our URLs in the video have changed. All URLs beginning with 'viewer.nationalmap.gov/...' have been updated to 'apps.nationalmap.gov/...'.

National Map structure tint

Image showing example of National Map structure tint

Example image of the Natonal Map structure tint

National Elevation Dataset

National Elevation Dataset

National Elevation Dataset