This region has fertile farmland and abundant resources.

This region is the hardest to typify.

This region is divided into the Southwest, the Rocky Mountain Region and the Pacific Northwest.

This region has the most populous state.

The region's inhabitants are sometimes seen as commercially minded, unsophisticated, self-sufficient, and pragmatic.

This region is known for its small towns and farmlands where wheat and corn are grown.

This region's most important city is Chicago that dominates its commerce and industry.

This region is rich in uranium, coal, crude oil and other mineral deposits.

This region is famous for its magnificent desert scenery, and also its spectacular mountains and wilderness areas.

This region has the state with the most developed economy and the biggest number of Asian and Hispanic immigrants.

The inhabitants of this region feel that their region is already experiencing limits to its growth.

Nowadays, these two regions are experiencing tremendous population growth.

This region includes Nebraska, Kansas, Minnesota, Wisconsin.

This region includes Montana, Wyoming, Colorado and Utah.

Historically, these two regions were dominant in the USA.