Review for Deadwood Mountain Grand Hotel & Casino Review For Deadwood Mountain Grand Hotel & Casino Google User May 14 '17 at 18:05 We were there for a concert. Was not sure if the layout and we found out it was just chairs on a large open floor. This is not the best setup but they did what they could with the space and was good. We are the type to stand for a concert so we ended up leaving our seats and rocking around! Great sound though, loved it! View full site to comment or like