USA
Pittsburgh. Iron is mined near the Great Lakes and in the Pittsburgh, Birmingham and
Philadelphia areas. In California and Texas there are rich oil-fields. There are also
deposits of silver and gold
Animal life
In the Arctic regions of mountain and tundra are found ground squirrels, occasional bear
and cold-water fish. Alaskan coastal waters are the habitat of a number of large mammals
including walrus and seals. Caribous spend summers in the tundra but migrate into the
conifer forest for winter.
The moose ranges throughout the northern United States. In the eastern forests live elks,
black bears, deer, foxes, raccoons, skunks and squirrels. Along the coast of the Gulf of
Mexico live large and more colourful birds such as pelicans and flamingos. Alligators can
also be found there. Bison (buffalo) are popularly associated with the grasslands,
annaabi.ee 
