3. Thick layers of ice sit on St Louis Falls in Beauharnois, Quebec. The area is home to one of the largest hydroelectric generating stations in the world.
4. This fantastic shot shows the waterfall freezing from outside in; there's still a considerable waterfall flowing within the ice lume.
5. Undulating waves and nodules of ice give this waterfall in Starved Rock State Park, Illinois, such wonderful texture.
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7. This random waterfall was discovered on the road side of a seldom travelled road near Hamilton, Canada.
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9. The folds at the bottom of this waterfall demonstrate how slowly waterfalls can freeze, and are in stark contrast to the jagged, spiky icicles hanging from the edge of the rock.
10. This great image was taken in Oak Creek Canyon near a place called Temple of Mother Earth on the West Fork Trail, Sedona, Arizona.
11. A simply fabulous shot from the bottom of the ice waterfall looking up. Just look how the ice has built up from the spray on surrounding twigs. That's what you call natural beauty.