User Summary: Dreadhollow Forest Terrain Tray - Single (w/ GRID) is part of the Wildlands wilderness terrain series. Terrain trays are made of thin ferrous metal sheet so the magnetic pieces can stick to it. Different terrain artwork printed on the surface of each side. This item was initially available as an add-on during the Wildlands Kickstarter. Dreadhollow Forest Terrain Tray - Single (w/ GRID) comes with 1 Forest Patchy Ground / Soggy Bog 12x12 (w/grid).