StratMap 2018 50cm Crockett County Lidar

Date(s): Coverage Availability/Geographic Extent: Footprint: Source(s):
2018 Crockett County 1/64 USGS Quadrangle StratMap

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StratMap 2018 50cm Crockett County Lidar is in the public domain and available from the Research and Distribution Center for the cost of reproduction.

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Data Details

Available Formats: LAS
Alternative Data: 1M Hydro-Flattened DEM, 3D Breaklines
Derivative Data: 2ft and 5ft Contours
Known Issues: None
Recommended Uses: Basemap, Research, Analysis
Spatial Reference:

EPSG 6344


The Texas Water Development Board (TWDB) and the Texas Commission on Environmental Quality partnered to acquire high quality lidar data. The Statement of Work was issued by the Strategic Mapping (StratMap) Program of the Texas Natural Resources Information System (TNRIS), part of the Texas Water Development Board (TWDB). The project area is approximately 484 square miles in Crockett County, Texas. The data was acquired by Sanborn with third party QAQC from AECOM. The project specification for the lidar data acquisition was developed to support a point density of 4 points per square meter. The dates of acquisition are March 20,2018-March 22, 2018. The purpose of this LiDAR data was to produce high accuracy 3D elevation products, including tiled LiDAR in LAS 1.4 format, 3D breaklines, and 1 meter cell size hydro flattened Digital Elevation Models (DEMs).

Lidar data for Texas is made available online through the use of data compression using LASTools. LASTools is an open-source collection of tools for lidar data viewing and manipulation. TNRIS uses the LASzip portion of LASTools for compression\decompression. LASTools provides a lossless compression of the data from las to laz formats.

  • Software with native LAZ support
  • ERDAS IMAGINE (14.1 and up) by Hexagon Geospatial
  • Global Mapper (13.1 and up) by Blue Marble Geo
  • ENVI LiDAR (5.1 and up) by Exelis VIS
  • FME (2012 and up) by Safe Software
  • LAStools by rapidlasso
  • 3D Web Viewer by Hobu Inc.
  • FUSION (3.40 and up) by Bob McGaughey of the USDA
  • Voyager (1.3 and up) by Voyager GIS
  • GRASS GIS (7.0 and up) by Open Source Geospatial Foundation (OSGeo)

Supplemental Information

Tile Index: Download File
Project Report(s): Download File
Lidar Breaklines: Download File