Does limestone underlies much of the Yucatan Peninsula?

Yes, limestone underlies much of the Yucatán Peninsula. The peninsula is located in southeastern Mexico and is known for its unique geology and natural beauty. The Yucatán Peninsula is made up of a thick layer of limestone, which is a sedimentary rock formed from the accumulation of calcium carbonate. This limestone was formed over millions of years from the remains of marine organisms such as corals, algae, and mollusks. The limestone has been eroded by water over time, creating a landscape of sinkholes, caves, and cenotes which are natural swimming holes. The limestone also provides the raw material for many of the region's famous Mayan ruins, including Chichen Itza and Tulum.