A large mass of ice formed from falling snow, slowly moving down a mountain

A large natural stream of water flowing to the sea, a lake, or other body of water

A gently sloping shore next to a body of water washed by waves or tides, often covered by sand and pebbles

A deep valley with steep walls shaped by a river

A large hole that was formed by natural processes in the side of a cliff, hill, or under the ground

The land that gets covered by water from a stream or river during a flood

A piece of land that sticks out in a body of water is

A large area of level or nearly flat land

A high, uplifted area with steep slopes

A large body of water surrounded by land

a piece of land completely surrounded by water is

A low area between hills and mountains, often where a river flows

a fan shaped deposit at the mouth of a river

A mountain with an opening in the Earth's crust through which molten lava, ash, and gases are ejected

A nearly level area that has been uplifted

A flow of water falling from a height

A large group of islands