The CHamoru people raised colonnades of megalithic capped pillars called upon which they built their homes. Latte stones are stone pillars that are found only in the Mariana Islands; they are a recent development in Pre-Contact CHamoru society. The latte-stone was used as a foundation on which thatched huts were built. Latte stones consist of a base shaped from limestone called the and with a capstone, or , made either from a large brain coral or limestone, placed on top. A possible source for these stones, the Rota Latte Stone Quarry, was discovered in 1925 on Rota.