- The Appalachian Mountains were a significant physical barrier that separated the coastal plain from the interior of the continent.
- The mountains made transportation and communication difficult, which contributed to the development of distinct regional identities in the colonies.
Atlantic Ocean:
- The Atlantic Ocean served as a natural boundary between the colonies and Europe.
- The vast expanse of the ocean made it challenging to maintain close political, economic, and cultural ties with the European powers.
Gulf of Mexico:
- The Gulf of Mexico formed the southern boundary of the 13 colonies.
- It influenced the development of the southern colonies' economy, which centered around agriculture and trade with the Caribbean and Latin America.
St. Lawrence River and the Great Lakes:
- The St. Lawrence River and the Great Lakes defined the northern boundary of the 13 colonies.
- These waterways provided access to the interior of the continent and played a crucial role in the fur trade and exploration.
Mississippi River:
- The Mississippi River marked the western boundary of the 13 colonies.
- It served as a vital transportation route and facilitated trade between the eastern colonies and the western frontier.