Most people in Colorado break the state into about three buckets: the Front Range, the Western Slope, and “the mountains.” That’s it. That’s the whole mental map.
Geologists, though?
They carved the state into eight distinct sections, and honestly, it makes sense once you see it.
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The Big Five You Should Know
According to the Colorado Geological Survey, the state’s five main geological regions are the Great Plains, the Southern Rocky Mountains, the Colorado Plateaus, the Wyoming Basin, and the Middle Rocky Mountains.
The Great Plains stretch the full length of the state, north to south, basically everything east of where the Rockies start climbing. Denver and Colorado Springs sit almost exactly on that boundary, which explains a lot about those cities if you think about it…