Bob Weir & Ratdog with The Avett Brothers at Red Rocks, was by far one of the biggest highlights of the summer at Red Rocks. Sad news came Sunday via Furthur's Facebook page, and The Ratdog website that Bobby is canceling all the rest of his tour dates this year. There are speculations of Health concerns, but nothing more has been said. We only hope the best for you Bobby and to see you again soon!