September 27 - October 3 Discover nature this week as timber rattlesnakes enter hibernation. Missouri’s largest venomous snake, the Timber Rattlesnake, can be found statewide in the wild, but this is no reason to hide away indoors. Though the Timber Rattlesnake is dangerously venomous, there are few cases of rattlesnake bites in this state, because the snakes prefer to be left alone. According to the Missouri Department of Conservation, there have been no recorded deaths caused by venomous snake