a large hole in the ground or in the side of a hill or mountain

a rock formation with steep sides

a land formation with a flat area on top and steep walls

a piece of land that is surrounded by water

a long-lasting, slow moving river of ice on land

a low place between mountains

a raised area or mound of land

a small body of water surrounded by land

a narrow strip of land, with water on either side, which connects two land masses

a low, watery land formed at the mouth of a river. It is often shaped like a triangle

a mountainous vent in the Earth's crust. When it erupts it spews out lava, ashes, and hot gases from deep inside the Earth

a high steep face of rock and soil

a part of the ocean that is partly surrounded by land

a narrow body of water that connects two larger bodies of water

a large body of salt water that surrounds a continent

a hill or ridge made of sand. They are shaped by the wind and change all the time.

an area of sand sloping down to the water of a sea or lake

a deep valley with very deep sides. They are often formed by erosion from a river over a long period of time.

very tall, high natural place on Earth. It is taller than a hill.

a large body of water surrounded by land on all sides

an area made fertile by a source of fresh water in an otherwise dry and arid region

a large, flowing body of water that usually empties into a sea or ocean.

a river that falls off a steep part of land, usually a cliff or the side of a mountain.