USGS 3DEP 1 m bare-earth DEM tiles, upper Guadalupe River (TX_Hurricane_2018_D18_SUPPLEMENTAL_DRRA)

Summary. Fifteen USGS 3D Elevation Program 1 m bare-earth DEM tiles covering Hunt to Comfort, gridded from the 2018-19 lidar collection TX_Hurricane_2018_D18_SUPPLEMENTAL_DRRA (TxGIO collection usgs-2019-70cm-hurricane, ~3.8 pts/m2, 70 cm native). Lidar-derived.

Scenarify role. Bare-earth alternative to the Corral Texas Terrain DTM (which is 2011-vintage and buildings-in along the river). Also the point-cloud source for a DSM, from which 3D buildings and wall lines are derived.

Access. Public S3, no auth: https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/1m/Projects/TX_Hurricane_2018_D18_SUPPLEMENTAL_DRRA/TIFF/USGS_1M_14_x{45..47}y{331..335}_TX_Hurricane_2018_D18_SUPPLEMENTAL_DRRA.tif (~59 MB each). Tile list via the TNM Access API query resource below. Point clouds (LAZ) from the TxGIO collection page or the Corral mirror catalogued in texas-gio-lidar-data.

Format and CRS. GeoTIFF Float32, 1 m, NAD83(2011) / UTM 14N, NAVD88 metres (3DEP spec), hydro-flattened bare earth.

Coverage. Study bbox -99.45..-98.95, 29.85..30.25. Acquired 2018-2019.

Provenance and caveats. USGS 3DEP QL2 product; marked "best available" for Kerr County in the TxGIO Lidar Index on 2026-11-05. Predates the July 2025 flood. The legacy TxGIO DataHub host data.tnris.org no longer resolves; use data.geographic.texas.gov (returns 403 to non-browser clients; open in a browser).

Related. texas-terrain-1m-dtm-kerr-kendall, texas-gio-lidar-data.

Dataset extent

Data and Resources

  • TNM Access API: 1 m DEM products in study bboxJSON

    Returns the 15 tile records with downloadURL, sizeInBytes, publicationDate.

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  • Example tile x46y333GeoTIFF

    Kerrville tile. Other tiles follow the x45-47 / y331-335 pattern.

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  • TxGIO collection: usgs-2019-70cm-hurricaneHTML

    Collection page with LAZ point-cloud and DEM tile downloads and metadata.

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  • TxGIO Lidar Index (tile footprints)ArcGIS FeatureServer

    Query by envelope; attributes collname, year, lpcres, demres, bestavail, tileid.

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Additional Info

Field Value
Source https://www.usgs.gov/3d-elevation-program
Version 2026-11-05
Author U.S. Geological Survey
Author Email U.S. Geological Survey
Maintainer William Mobley
Maintainer Email William Mobley
Temporal Coverage Start 2018-01-01
Temporal Coverage End 2019-12-31
Spatial Coverage {"type": "Polygon", "coordinates": [[[-99.45, 29.85], [-98.95, 29.85], [-98.95, 30.25], [-99.45, 30.25], [-99.45, 29.85]]]}