Niagara is a big waterfall on the Niagara River at the international boundary line between United States state of New York with the Canadian province of Ontario. This waterfall is about 17 miles (27 km) north northwest of Buffalo, New York and 75 miles (120 km) southeast of Toronto, Ontario.

Waterfall is famous as a tourist destination
On the morning of March 29, 1948 was a special day. The tourists who visit Niagara waterfall in the United States-Canadian border was amazed when the water stops flowing waterfall. They watched it dry waterfall, leaving only rocks with a few puddles of water in the river bottom. What makes Niagara dry? Strong winds and big chunks of ice seems to have blocked the flow of the Fund Erie Niagara Falls water source, so that the waterfall is a "disappeared". About thirty hours after the Niagara stops flowing, ice was broken, and then flow back the water flow faster, and waterfall roaring Niagara again, until today.