Amphibians and Reptiles in Harris County: Texas Cooperative Wildlife Collection list of species found in the county.
Handbook of Texas Online: Current and historical information about Harris County.
Harris County Real-Time Rainfall Maps: Harris County Office of Emergency Management (HC-OEM) Rainfall maps and Advanced Flood Warning System for Harris County and the Greater Houston Area.
Harris-Galveston Coastal Subsidence District: Created for the purpose of ending subsidence, which contributes to flooding. Includes news, reports, conservation information, and details of measurement technology.