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Consider the impossibly gravity-defying steps of a goat delicately yet pragmatically traversing a rock wall along an invisible path.

Whitney, two climbers realized they were in a treacherous situation — they were stuck in their climbing harnesses, attached to the steep rock wall by ropes as the temperature plummeted toward freezing.

Two shirtless men perched on a rock wall scramble in the opposite direction.

And if you hike past an outdoor climbing route on a dry day, you’ll likely encounter multiple climbers wearing helmets and harnesses, making their way up a rock wall.

Six climbers plummeted toward a nearly vertical 11,000-foot rock wall below.