According to National Geographic, the United States is typically divided into five geographic regions: the Northeast, Southwest, West, Southeast and Midwest. Each region has its own geographical features that distinguish it from the other regions. For the sake of convenience, regional boundaries are concurrent with state lines.
The Northeast United States, which includes the New England states and is bordered in the south by Pennsylvania, is known for the Appalachian Mountains and the Atlantic Coast. This region has a humid continental climate with warm summers and snow fall in the winter. The Southeast, which extends down to Florida and north to Kentucky, West Virginia and Arkansas, has a warmer, humid, subtropical climate. Its distinguishing geographic features are the Gulf of Mexico and the Mississippi River.
The Midwest extends north to the Canadian border and south to Kansas, Missouri, Illinois, Indiana and Ohio. It has a humid continental climate and is known for the Great Plains and Great Lakes. The Southwest includes the states Texas, Oklahoma, New Mexico and Arkansas, and it's known for the Rocky Mountains and Grand Canyon. The climate is a semi-arid steppe climate, with dessert climates found to the west of the region. Lastly, the Western region of the United States includes Colorado, Wyoming, Montana and the states west of these, along with Alaska and Hawaii. This region has a range of climates, including alpine and desert. The major geographical features are the Mojave Desert and the Rocky Mountains.