Land Use
Parcel based land use datasets are available for the following counties: Harris, Montgomery, Galveston, Fort Bend, Brazoria, Waller, Austin, and Walker. If you have questions or would like to obtain this data, please call or e-mail Bill Bass at 713-499-6687 or william.bass@h-gac.com.
Land Cover
H-GAC provides classification of the region's landscape into nine land cover categories. Land Cover data is available in three formats: An original nine category classification, and two reprocessed classifications based on the original classification. Due to the accuracy of the classification, this data is not to be used for regulatory or jurisdictional decision making without rigorous or intensive field verification efforts. We strongly encourage you to review the following documents prior to downloading or using the data.
View Image Processing and Accuracy Assessment Protocol [624K, , Jan. 2003]
View FGDC-compliant Metadata [ , Jan. 2003]
View a Methodology for Developing Land Cover Data for the Houston-Galveston Area Council and Clean Rivers Program Region (7pp., , Feb. 2002).
View a PDF or GIF map of H-GAC's Region and Assessment Basins.
Click on Grid Code-Category Pairing to learn about what Grid Code Values represent.
Click on the graphics below to review a sample image of each product, or the filename to download.
All datasets are in UTM 15 Projection, Units Meters, Datum NAD83
Original 9 Category
WinZip: hgaclc_u15_wksp.zip
3x3 Mode-Filtered
WinZip: hgaclcm_u15.zip
Merged 6 Category

WinZip:
hgaclcrec_u15.zip