The Buffalo National River Park Service is investigating a break in at Fitton Cave on park property in Newton County. The locked and gated cave system, one of the largest in the state, serves as a valuable research site for geologists and wildlife conservationists, but has sustained significant damage. The park service is asking the public to help identify those responsible by calling: 1-888-653-0009, logging online to www.nps.gov/ISB or emailing a tip to nps_isb@nps.gov.