Frozen Niagara Falls
Niagara Falls once have been Frozen in 1911, during an extended winter cold snap, it naturally formed ice sculpture, the phenomenon has been known as "Ice Bridge".
In winter of 1934 the "ice bridge" phenomenon was expected to happen again but only half of the waterfall was frozen.
As reported in the Buffalo Express newspaper:
"The Falls of Niagara can be compared to nothing but a mere mill dam this morning. In the memory of the oldest inhabitants, never was there so little water running over Niagara’s awful precipice, as at this moment! Hundreds of people are now witnessing that which never has, and probably never may again be witnessed on the Niagara River. Last night at 11 o’clock the factories fed from the waters of this majestic river were in full operation, and at 12 o’clock the water was shut off, the wheel suddenly ceased their revolutions, and everything was hushed into silence. Various are the conjectures as to the cause; the most reasonable of which is that Lake Erie must be making a grand delivery of ice, and this the mouth of the Niagara, although large, is not quite enough to take in the whole at once, and that the consequences are, back water."