Tyler State Park is a state park in Smith County, Texas, United States north of Tyler, Texas. The land was deeded to the state by private owners in 1934 and 1935. Original improvements were made by Civilian Conservation Corps (CCC) Company 2888. The park opened in 1939.
Activities include picnicking; camping; boating (motors allowed - speed limit); boat rentals; fishing; birding; hiking; mountain biking; lake swimming (in unsupervised swimming area); and nature study.
The park has a humid, subtropical climate and receives an average of 44 inches of rain annually. The average temperature is 46 degrees in winter and 80 degrees in summer. The park is in the Sabine River Basin. The outflow from Tyler State Park Lake eventually makes its way to the Sabine River.
Situated in the western Piney Woods near the Southern Post Oak Savannah ecoregions, vegetation from both habitats is found in the park. Shortleaf pine and loblolly pine are the tallest trees in the park. Other tree species found in the park include southern red oak, post oak, blackjack oak, black oak, bluejack oak water oak, sweetgum, eastern red cedar, pecan, mockernut hickory, sassafras, black walnut, sugarberry, cockspur hawthorn, common persimmon, chickasaw plum, mexican plum and slippery elm. Other plants documented in the park are yaupon holly, American beautyberry, standing cypress, rusty blackhaw, wild grape, eastern gamagrass, and little bluestem
Mammal species are in the park are characteristic of East Texas; white-tailed deer, eastern gray squirrel, raccoon, Virginia opossum, Mexican long-nosed armadillo, striped skunk and coyote. The Texas rat snake, eastern copperhead and green anole are the most common reptiles encountered. Over 200 species of birds have been identified in the park. The pine warbler, American robin, brown-headed nuthatch, turkey vulture and black vulture can be seen year-round. Popular fish in Tyler State Park include bluegill, channel catfish, largemouth bass and rainbow trout.