Excursion: Carrie Furnace + Sandcastle July 2018 Carrie FurnaceSandcastle The group at Carrie Furnace. Photo by Terry Clark. Rivers of Steel hosted a community day for the arts. We spent the afternoon making screen prints, exploring the historic Carrie Furnace site, and creating crafts. Screen printing Community Day posters. Photo by Terry Clark. Exploring the old steel mill. Photo by Terry Clark. Then we suited up and went to Sandcastle for water fun. Getting swim and sun ready! Photo by Terry Clark.