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H-GAC has periodically collected LiDAR for the H-GAC region since 2006 in cooperation with various state, federal, and local governments. The acquisition of LiDAR occurs on a periodic basis and is not part of a regular recurring acquisition program. To view the different LiDAR coverages for the different project years, please use the coverage maps linked in the Products column below.
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Vertical DatumsNAVD88, GEOID12B
Horizontal DatumsNAD83 (2011)
ProjectionsUTM Zone 15 N (portion falls within UTM Zone 14 N)
Vertical UnitsMeters (Orthometric, NAVD88)
Nominal Pulse Spacing≤ 0.5m/4 ppsm
AccuracyRMSEz 10cm (non-vegetated)
ASPRS Classifications1-7, 9-10, 13-14
ProjectionsState Plane Texas South Central (ftUS)
Vertical UnitsUS Feet
Horizontal UnitsUS Feet
Vertical DatumsNAVD88, GEOID12A
AccuracyRMSEz X 1.9600 (95% confidence level)
ASPRS Classifications1-7, 9, 13-14
Vertical DatumsNAVD88, 2001 Adjustment, GEOID99
Horizontal DatumsNAD83, HARN
Point Density1 ppsm
ASPRS Classifications1-2, 9
AcquisitionMerrick & Company
ProjectionsUTM Zones 14 N and 15 N
AcquisitionSanborn Mapping Company
Pricing and availability listed on this website are subject to change, and do not constitute any contractual commitment until an order has been placed via our online ordering system.
These products, data, and/or tools are for informational purposes only and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. They do not represent an on-the-ground survey and represent only the approximate relative location of property boundaries. Mapping may not reflect on the ground conditions. The Houston-Galveston Area Council makes no further claims as to the accuracy or reliability of the data, and neither assumes, nor will accept liability for their use. Use or reproduction of this data without acknowledging the Houston-Galveston Area Council as the source is strictly prohibited.The Houston-Galveston Area Council will not provide refunds once data has been delivered or shipped to customer. All sales are final once shipped or provided via delivery or FTP.The Houston-Galveston Area Council does not provide prior purchased data as a restoration for lost or corrupted data previously purchases. Customers should ensure that all data is properly backed up and stored to prevent loss of data.
Houston-Galveston Area Council