Try Fjord.
11-sided QuadrilateralAn 11-sided quadrilateral is called a hendecagon.
A seven sided figure is called a heptagon.
A four sided figure is called a quadrilateral.
A 12-sided figure is called a dodecagon.
An arete is a mountain ridge that is steep sided and narrow along the ridge.
yes, the mid ocean ridges are a steep sided valley at the center of a mid ocean ridge
A canyon.
A steep-sided hill or mountain that stands alone and is usually smaller than a mesa is called a butte.
Try Fjord.
a deep, steep-sided, narrow river valley
A hogback is a narrow, steep-sided ridge of land that has been geologically uplifted along a reverse fault. It typically has a steep slope on one side and a more gradual slope on the other. Hogbacks are common in areas with significant tectonic activity.
A deep steep-sided valley formed by weathering and erosion is called a canyon. Canyons are typically formed by the action of rivers cutting through rock over long periods of time.
A deep steep-sided valley formed by weathering and erosion is called a canyon. Canyons are typically formed by the gradual wearing away of rock by water and wind over long periods of time, creating a deep, narrow valley with steep sides.
Such structure could be called a Canyon.
A steep-sided volcano formed entirely of ash and cinders is called a cinder cone volcano. These volcanoes are typically smaller in size compared to other types of volcanoes and are formed from explosive eruptions that eject mostly fragmented volcanic material.
A barranca is a steep-sided gulch or arroyo.