Barbara Vanderbilt at Tidemark Gallery for August ArtWalk Waldoboro. Opening Saturday, 10 August, from 4 to 7pm. “The Language of Stone” is a tour de force exhibition of Barbara Vanderbilt’s feeling for the material. Whether it’s Maine granite or Southwestern sandstone, Vanderbilt can almost bring these rocks to life in pastels on paper. Visitors will be able to meet the artist as well as enjoying her work.