Officials at the Point Reyes National Seashore remain tight-lipped about the confidential mediation talks that will determine the future of the ranches and dairies in the park. For members of the public trying to divine where those conversations might be heading, a new nugget of information emerged this week for them to puzzle over. 

The morsel came courtesy of Greg Sarris, tribal chairman of the Federated Indians of Graton Rancheria, a federally recognized tribe…