Wrinkle ridges are long, winding topographic highs and are often characterized by a
broad arch topped with a crenulated ridge. These features have been identi!ed on
many other planetary bodies such as the Moon, Mercury, and Venus. On Mars, they are
many tens to hundreds of kilometers long, tens of kilometers wide, and have a relief of
a few hundred meters. Wrinkle ridges are most commonly believed to form from horizontal
compression or shortening of the crust due to faulting and are often located in
volcanic plains.