Publisher's blurb: Shelter can be found in unexpected places... This set of 12 double-sided terrain cards (plus bonus terrain on the back of the the covers) presents a sprawling natural cave system of ice and snow on one side. But flip the cards over and you can populate those glacial caverns with a hidden sci-fi base! Mix and match the tiles to create your own tunnel system or outpost, or use the cover as a guide. Combine Glacier Base Tiles, Packs 1 and 2 to build an even larger snow cave/installation! Each card measures 5 by 8 inches, and is printed on thick glossy cover stock. The complete set is gathered in a clear resealable envelope for safe and easy transportation.