The United States is a large country with a wide range of physical features, from tall mountains to deep valleys, rivers, lakes, and plains. Rocky Mountains - Separating the western third of the country, the Rocky Mountains traverse the continent, forming the Continental Divide, where waters to the west all drain to the Pacific Ocean and waters to the east drain into the Atlantic. Cascades and Coast Ranges- The Cascade and Coast Ranges run along the Pacific Coast, from parts of western Canada through Washington, Oregon, and California.
Sierra Nevada - Located in California and Nevada, the Sierra Nevada Mountains are named for their snowy peaks, which run 400 miles from north to south along the border between these two states.

Appalachian Mountains - Along the eastern United States, the Appalachian Range runs northeast from Alabama up through coastal states like North Carolina, Virginia, and Maryland. Adirondack Mountains - Sometimes grouped with the Appalachian Range, the Adirondack Mountains are situated in northeastern New York and are a prominent feature of this region. Columbia Plateau - Located in the northwestern United States, the Columbia Plateau is a high, raised stretch of land between the Cascades and the Rocky Mountains. Colorado - The Colorado River runs through the southwest, beginning in the Rocky Mountains, through the Grand Canyon, and finally flowing down into Mexico.

Each activity connects to National Academic Standards, covering a range of subjects across the curriculum.

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