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Service Description: The USGS 3D Elevation Program (3DEP) Index service from The National Map shows where data is available for two general categories of downloadable elevation data: (1) digital elevation model (DEM) datasets at standardized horizontal resolutions, and (2) elevation source data including that used to produce standard DEMs, and additional datasets derived from ifsar in Alaska only. Distributable DEM products include: 2 arc-second (in Alaska only); 1 arc-second; 1/3 arc-second; 1/9 arc-second; 5 meter (in Alaska only); and 1 meter. The 2-, 1-, and 1/3-arc-second products are staged for download in 1x1 degree tiles in ArcGrid, GridFloat, or IMG formats, while 1/9 arc-second products are staged in 15x15 minute tiles in IMG format only. The 5-meter products are staged for download in ArcGrid only as a single mosaicked raster to each project extent. The 1-meter products are staged in 10,000 x 10,000 meter tiles in IMG format only. Distributable elevation source data include: lidar point clouds (LPC) in LAS format for various parts of the U.S., and IfSAR-derived digital surface models (DSM) and orthorectified radar images (ORI) in TIFF format in Alaska only. In addition, both topobathymetric lidar-based DEMs and LPC data products are available for very limited river areas in the US. Integrated topobathymetric elevation models are also available for some areas of the US, which are continuous-surface raster models derived from multiple sources including topographic lidar, topobathymetric lidar, sonar data, and hydrographic surveys. For additional information on the 3DEP, go to http://nationalmap.gov/3DEP/index.html and https://apps.nationalmap.gov/3depdem/.
Map Name: Layers
Legend
All Layers and Tables
Dynamic Legend
Dynamic All Layers
Layers:
Description:
Copyright Text: USGS TNM - 3D Elevation Program (3DEP). Data refreshed weekly. SD 9/13/2023
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
XMin: -1.4375150433941644E7
YMin: 3982061.599242949
XMax: -6842641.435516566
YMax: 6563033.025146513
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -2.00375070672E7
YMin: -1618227.1306999996
XMax: 2.0021947286700003E7
YMax: 1.8807214096199997E7
Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: USGS TNM - 3D Elevation Program (3DEP)
Author: U. S. Geological Survey - National Geospatial Program
Comments: See https://apps.nationalmap.gov/help/ for assistance with The National Map viewer, download client, services, or metadata.
Subject: USGS TNM - 3D Elevation Program (3DEP)
Category:
Keywords: a-16,ngda,elevation,3DEP,national elevation dataset,NED,digital elevation model,DEM,resolution,arc-second,meter,ifsar,lidar,DSM,orthorectified radar image,ORI,United States,US,NGP-TNM,ArcGrid,GridFloat,IMG,LAS,TIFF,REST,WMS
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON
Supports Query Data Elements:
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
Info
Dynamic Layer
Supported Operations:
Export Map
Identify
QueryDomains
QueryLegends
Find
Return Updates