Library · Source reference
usgs_3dep
Provider
US Geological Survey
Product
3DEP 1/3 arc-second elevation
Coverage
CONUS; one fully covering native tile
Resolution
1/3 arc-second; native cells
Temporal coverage
Static tile version, not a time series
Access method
TNM catalog + conditional HTTPS ranges
What it provides
Surface elevation on a native raster grid.
Available CubeDynamics nouns
Current QA/certification status
Bounded real acquisition and offline checks passed for retained samples. Broader scientific review and sustained-load testing remain open; endpoint availability is independent. QA profile: continuous_raster_static. Evidence and scope.
Serving revision / provenance information
Snapshot; strong ETag and exact tile identity. No production serving revision assigned. Raw response hashes, request parameters, and source-specific metadata are preserved; a live refresh never overwrites an existing snapshot.
Important limitations
256 native pixels per side; 80 requests / 8 MB bodies / 180 s. No mosaics, resampling, silent tile clipping, or vertical conversion. Requires Rasterio >=1.4. A requested historical tile is not asserted current.