Which river forms part of the border between the United States and Mexico?

An area where water is stored is called a

America's hottest large city is

The largest desert in North America is the

A deep, narrow valley with steep sides is a

Which Southwest animal has big feet which are good for walking on rough terrain?

A river that joins other rivers is a

The following cultures still have an influence in the Southwest region today EXCEPT

Some of the Navajo who live in the Southwest region live in modern homes, while others live in traditional homes called

How many states make up the Southwest region?

All of the following are landforms in the Southwest EXCEPT

The most important natural resource in the Southwest is

The most famous landmark in the Southwest is the

A period of little or no rain is a

The climate of the Southwest can best be described as

Valuable minerals found in the Colorado River basin include

How have desert animals adapted to the Southwest environment?

A kind of factory that separates crude oil into parts like gasoline and heating oil is called a

Large pipes or canals that move water from lakes and rivers to farms and cities are called

One of the biggest problems of the Southwest region is a