Big Thicket is the name of a heavily forested area in Southeast Texas, United States. Several attempts to provide boundaries have been made ranging from only a 10 to 15 mile section of Hardin County to an area encompassing over 29 counties and over 3,350,000 acres. Scientific studies have been performed also, but with varying results. In "... 1936,... Hal B. Parks and Victor L. Cory of the Texas Agriculture Experiment station conducted a biological survey of the Big Thicket region".