Across
1
Largest river in South America
2
Large body of water partly enclosed by land
3
Raised area of land, smaller than a mountain
4
Large natural stream of water
6
Where river meets the sea
9
City that is seat of government
11
Large area covered with trees
Down
1
Height above sea level
5
Cold treeless Arctic plain
7
Low area between mountains
8
Wearing away of land by water or wind
10
Tool for finding directions