1
The Sahara is one.
2
A group of trees, a wooded place.
3
Similar to a river, but smaller.
4
A lower area between two mountains.
5
A high, steep rock face.
6
Section of land bordering the water.
7
The opposite of shallow
8
A small mountain.
9
The opposite of low
10
A hollow place in the earth, especially one into a hill or a mountain.