Sapiens: Mountains is a set of eight landscape tiles for Sapiens with one-half of each tile being one of the eight normal landscape tiles and the other half of each tile being a mountain, which is what surrounds the valley on each individual's playing board.

During set-up, place these eight mountain tiles next to the scoreboard. During play, instead of placing a tile from your personal pool onto your player board, you can place one of these mountain tiles, with the mountain half lying outside the normal play area and the other half matching an adjacent tile (and scoring food points and a bonus) like usual; if you cover a cave with the mountain half of the tile, you earn no shelter points for this placement.

For more information, visit the BGG listing.