The Frozen Watefalls

The frozen waterfall, a beautiful display of nature's art at work. 

A beautiful frozen waterfall located in Miyun County.

A waterfall at the foot of Flamemountain (Turfan, XinJiang province) with a 20 meters drop which has frozen over. 

'One of the unnamed frozen waterfalls close to Skookum Falls, the third waterfall along the trail if you start from Forest Service Road 73 (Huckleberry Creek Road).' 

Upper mich. Lanse Mi.

There are more 71 beautiful images of frozen water falls taken by QT Luong. This is one amazing gallery of frozen waterfalls which you shouldn't miss for the world: link.

The flow of water was stopped completely over American Falls & Horseshoe Falls on March 29th 1848. "Due to an icejam in the upper river for several hours. This is the only known time to have occurred. The Falls did not actually freeze over, but the flow was stopped to the point where people actually walked out and recovered artifacts from the riverbed". 

People congregate below the Frozen American Falls.

Frozen American Falls.

Frozen Niagara River and the Horseshoe Falls.

Even during the coldest months, "When the temperatures are right, some of the falling water freezes instantly on the block ice and form great ice falls in front of the actual waterfalls. Such formations grow further forming castle turrets and other outcrop patterns as the mist settles on them. On occasion, a ice bridge forms across the Niagara River within the Great Gorge below the Falls as a result of the laying down of these ice blocks".
On six reported occasions (1883, 1896, 1904, 1909, 1936 and 1947), the water flow over American Falls was totally stopped due to ice. But only once has this happened to the much larger Horseshoe Falls (originally known as the Canadian Falls): March 29-31, 1848, the Days Niagara Falls Went Dry".

Source: 1, 2, 3, 4 ,5, 6, 7, 8, 9, 10, 11.