escarpment
/ɪˈskɑrpmənt/
noun
- A long, steep slope or cliff that separates two level areas of land, often formed by faulting or erosion.
- The Niagara Escarpment is a famous geological feature in North America.
- The road wound along the base of the escarpment for miles.
- From the top of the escarpment, we could see the entire valley below.