dataset · USA
USGS 3DEP 1m National Map
This is a tiled collection of images with 1m pixel size from the 3D Elevation Program (3DEP). The 3DEP data holdings serve as the elevation layer of The National Map and provide foundational elevation information for earth science studies and mapping applications in the United States. The elevations in this DEM represent the topographic bare-earth surface. USGS standard 1m pixel size DEMs are produced exclusively from high resolution light detection and ranging (lidar) source data of images with
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Licence: proprietary
Evidence quality: 31.3
Listed in gee public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- bare-earth elevation DEM (1 m pixel) · elevation band in metres, referenced to NAVD88
- Coverage docs-verified
- United States (CONUS tiles in NAD83/UTM) · 2003-07-23 to 2025-04-08 per the Dataset Availability field; the page summary says 2006 to 2015, so the sources conflict
- Resolution docs-verified
- 1 m pixel size
- Formats docs-verified
- Google Earth Engine ImageCollection
- Access docs-verified
- Google Earth Engine account required (registration; free for research, education and nonprofit use; business-use pricing not stated). Data is USGS public domain with attribution requested. The entry's licence field says 'proprietary', which conflicts with the docs.
Useful for
- Use cases llm-inferred
- Catchment delineation and flow-path analysis from a bare-earth DEM for US project sites · Terrain surface input for a 2D hydraulic model on US sites · Cut/fill and earthworks volume baselines for US civils projects
- Audience llm-inferred
- GIS analysts · hydrologists · drainage engineers · civils engineers
Limitations
- Constraints llm-inferred
- US-only coverage; no UK data, so not applicable to UK-focused projects · Requires a Google Earth Engine account and the Earth Engine platform · Coverage and time span conflict between the docs' Dataset Availability field and the page summary (2006 to 2015) · Seamless within collection projects but not necessarily across projects · Entry licence 'proprietary' conflicts with the docs' public-domain statement
Evidence
- ee.ImageCollection('USGS/3DEP/1m')
- https://developers.google.com/earth-engine/datasets/catalog/USGS_3DEP_1m
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.