a deep valley with steep sides carved by a river over many years
a broad area of land that is gently rolling or almost flat.
a spring that spouts a fountain or jet of hot water and steam into the air at regular intervals.
a large area of level or rolling land with grass but few or no trees.
a narrow part of the ocean between cliffs or steep hills or mountians
a area of flat, low-laying land adjacent to a seacoast and separated from the interior by other features