In Mesoamerica, most pyramids were often used as what?

The most typical form of monumental architecture used in Mesoamerica was the pyramid. Pyramids were often perceived as artificial mountains, and they represented attempts by the ruling elites to construct a symbolic landscape.

Pyramids were used not only as temples and focal points for Maya religious practices where offerings were made to the gods but also as gigantic tombs for deceased rulers, their partners, sacrificial victims, and precious goods.

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).