U.S. Geography: Mountains, Plains, and Rivers

Appalachian Mountains: Extends from Georgia to Maine, significant for its biodiversity and cultural history.
Rocky Mountains: The longest mountain range in North America, spanning over 3,000 miles from Canada to New Mexico.
Sierra Nevada Range: Located between Nevada and California, known for iconic landmarks like Lake Tahoe and Yosemite National Park.
Cascade Mountains: Found in the Northwest U.S., recognized for its volcanic peaks and lush forests.

Great Plains: A flat landform in the central United States, ideal for grazing livestock and agriculture.
Mojave Desert: Located in the Southwest, characterized by unique flora and fauna, as well as extreme temperatures.

Mississippi River: Flows from Minnesota to the Gulf of Mexico, one of the longest rivers in the U.S., crucial for transportation and ecosystem.
Missouri River: The longest river in the United States, a major tributary of the Mississippi River, vital for trade and agriculture.
Colorado River: Renowned for carving the Grand Canyon, it provides essential water resources for the western states.
Rio Grande River: Forms a natural boundary between Texas and Mexico, important for border control and ecology.

Lake Michigan: One of the Great Lakes, bordered by Michigan and Wisconsin, known for its recreational activities.
Lake Huron: Lies between Michigan and Canada, featuring the world’s largest freshwater island, Manitoulin Island.
Lake Erie: Located to the northwest of Pennsylvania, the shallowest Great Lake and formerly known for productive fishing.
Lake Ontario: Bordered by New York and Canada, it is the smallest Great Lake by surface area and an outlet to the St. Lawrence River.

Atlantic Ocean: Lies to the east of the United States, it is significant for trade routes and climate influences.
Pacific Ocean: Borders the western U.S., the largest and deepest ocean, affecting weather patterns and marine biodiversity.
Gulf of Mexico: Located south of the U.S., an essential area for fishing and oil drilling, with unique coastal ecosystems.