U. S. Geological Survey - National Geo…

[Unnamed layer] [Unnamed layer] [Unnamed layer]
Service health Now:
Interface
Web Service, ArcGIS MapServer 10.4
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
Fees
unknown
Access constraints
USGS TNM – 3D Elevation Program (3DEP)
Data provider

U. S. Geological Survey - National Geospatial Program (unverified)

Contact information:

U. S. Geological Survey - National Geospatial Program

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The USGS 3D Elevation Program (3DEP) Index service from The National Map shows 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 10,000x10,000 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. For additional information on the 3DEP, go to http://nationalmap.gov/3DEP/index.html.

Available map layers (23)

DEM Product Index (0)

1 meter (1)

1/9 arc-second (2)

5 meter (Alaska only) (3)

1/3 arc-second (4)

1 arc-second (5)

2 arc-second (6)

Source Data Index - Lidar, Ifsar, DEM (7)

Lidar Point Cloud (8)

Ifsar DSM (Alaska only) (9)

Ifsar ORI (Alaska only) (10)

DEM – Source (11)

Query (12)

1 Meter (13)

1/9 arc-second (14)

5 meter (Alaska only) (15)

1/3 arc-second (16)

1 arc-second (17)

2 arc-second (18)

Lidar Point Cloud (19)

Ifsar DSM (Alaska only) Project (20)

Ifsar ORI (Alaska only) Project (21)

DEM - Source (22)

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Last updated 2025-02-02 05:36:12 UTC.