As rock is worn away by waves on a coastline, the land that takes a little longer to wear away can form either of the following: - it would either form a small reef (under water) or a cliff (above sea level)

As rock is worn away by waves on a coastline, the land that takes a little longer to wear away can form a cliff (above sea level).

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).