Black Canyon of the Gunnison National Park in Colorado isn’t your average canyon—it’s one of the steepest and narrowest in North America. Ever wonder why it’s called “Black”? Some parts get so little sunlight, the walls stay in shadow for most of the day.

Here’s something wild: the Gunnison River carved this canyon over two million years, slicing through rock that’s nearly two billion years old. The drop from rim to river is so sharp, sound bounces around in ways that can mess with your sense of space. There’s even a spot called Painted Wall, the tallest cliff in Colorado.

Best time to visit? Late spring through early fall, when roads and trails are open and weather’s steady. The park’s about a 90-minute drive from Grand Junction—just follow US-50 east, then take CO-347 south to the entrance.

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