Basin

A low, shallow area of land on Earth's surface.

canyon

A narrow valley with steep walls

climate

the pattern of weather over time in a particular place.

elevation

the height of land in relation to sea level.

gulf

an are of ocean mostly surrounded by water.

landform

a natural feature of the earth's surface, such as a plain, moutain or valley.

peninsula

an area of land that has water on three (3) sides

plateau

a high, flat area of land.

tributary

a river that empties into another river.