The Big Oak Tree State Park is located in Southeast Missouri, United States. The park was established in 1937 to help preserve some of the largest trees in the state and in the nation in a region of farmland. Activities in the park include fishing, hiking, and picnicking. An accessible boardwalk trail is available to take visitors through the forest.
| Champion Trees | Circumference | Height | Spread | Points | Status |
|---|---|---|---|---|---|
| Pumpkin Ash | 118" | 150' | 77' | 357 | Alive |
| Rusty Blackhaw | 48" | 29" | 25' | 83 | Alive |
| Eastern Cottonwood | 288" | 114' | 76' | 421 | Died 1976 |
| Slippery Elm | 264" | 115' | 60' | 394 | Died 1979 |
| Shumard Oak | 205" | 134' | 86' | 361 | Died 1997 |
| Bur Oak | 229" | 154' | 92' | 406 | Alive |
| Swamp Chestnut Oak | 272" | 156' | 104' | 454 | Alive |
| Pawpaw | 24" | 39' | 26' | 70 | Died 1980 |
| Persimmon | 97" | 133' | 45' | 241 | Alive |
| Possumhaw | 14" | 21' | 30' | 42 | Alive |
| Swamp Privet | 26" | 28' | 31' | 62 | Died 1959 |
| Black Willow | 148" | 113' | 69' | 278 | Alive |