(Starting in January!)
ROLLA, Mo. – Mark Twain National Forest will offer three days of free day use and two free nights of camping at year-round recreation areas the second weekend in January in celebration of Martin Luther King, Jr. Day weekend.
Free camping is being offered in unreserved campsites both Saturday and Sunday nights, [...]

Mark Twain National Forest will have free day use at recreation areas on Thursday, November 11, 2010, in honor of US military personnel, veterans and their families as part of the annual Veterans Day celebration.