Social Studies Crossword

A piece of land surrounded by water on four sides
A deep gorge, typically one with a river flowing through it.
A large area of flat land and few trees.
The great circle of the celestial sphere whose plane is perpendicular to the axis of the earth.
A giant block of ice.
A place on the coast where vessles may find shelter
A large natural stream of water flowing in a channel to another body of water.
The tidal mouth of a large river, where the tide meets the stream.
The part of the land near the sea.
A area or ridge of land that seperates waters flowing to different rivers, basins, or seas.