The United States is home to some of the world's most dramatic mountain ranges — from the ancient, weathered Appalachians in the East to the towering, snow-capped Rockies in the West. These ranges don't just define the landscape; they shape weather patterns, determine river flows, influence state economies, and create distinct cultural regions. This quiz asks you to identify which states fall within each major mountain range.

Four major ranges are covered: the Rocky Mountains stretching from Montana to New Mexico, the Appalachian Mountains running from Maine to Alabama, the Cascade Range in the Pacific Northwest, and the Sierra Nevada in California and Nevada. Each range has its own character — the Rockies are young, jagged, and dramatic with peaks above 14,000 feet; the Appalachians are ancient and rounded, with the highest point being Mount Mitchell at 6,684 feet; the Cascades are volcanic, featuring Mount Rainier, Mount Hood, and the still-active Mount St. Helens.

Mountain geography is essential for understanding American settlement patterns. The Appalachians were the first great barrier to westward expansion — early colonists spent over a century pressed against the eastern seaboard before finding passes through the mountains. The Rockies posed an even greater challenge, with Lewis and Clark's expedition revealing the immense scale of western mountain barriers. Today, mountain states are centers for skiing, mining, timber, and outdoor recreation, and their water resources — snowpack and glacial melt — supply drinking water and irrigation to cities and farms far downstream.