Niagara Falls is one of the most spectacular natural wonders of North America. 

尼亚加拉瀑布是北美地区最宏伟壮观的自然奇观之一。

It is on the Niagara River, about halfway between Lake Erie and Ontario. The river forms part of the United States-Canadian border.

它位于尼亚加拉河上，大致处于伊利湖与安大略湖之间。这条河构成了美国与加拿大之间边境的一段。

Niagara Falls actually consists of two waterfalls, the Horseshoe Falls and the American Falls. The Horseshoe Falls is on the Canadian side of the border in the province of Ontario. 

尼亚加拉瀑布实际上由两个瀑布组成，即马蹄瀑布和美国瀑布，马蹄瀑布在加拿大境内的安大略省，美国瀑布在美国境内的纽约州。

The American Falls is on the United States side in the state of New York. At night, wide beams of colored lights illuminate the falls. About 10 million people visit Niagara Falls annually.

晚间，彩灯投射出巨大的光束，将瀑布映照得通体透亮。每年大约有1000万游客到此游览。

Niagara Falls attracts visitors throughout the year. However, most visitors come during the tourist season, from April 1 to October 31. 

一年中的任何时候，尼亚加拉瀑布都吸引着观光者。然而，大多数游客还是在4月1日到10月31日之间的旅游季节来到此地。

Several steamers called the Maid of the Mist take sightseers close to the churning waters at the base of the falls. Parks line both sides of the river near Niagara Falls. 

几艘名为“雾中仙女”的汽船可以将游人带到瀑布下翻滚的水流间。尼亚加拉瀑布附近公园沿着河的两岸依次排开。

Excellent views of the falls may be seen from such sites as Prospect Point, Table Rock, and Terrapin Point. Four observation towers, ranging from 86 to 150 meters high, also provide fine views of the falls.

从观景台，桌石台，活动屋顶台可以观赏到瀑布的壮美景观。游人也可以借助四座高度在86米与150米之间的观察塔一睹她的风貌。

United States and Canadian hydroelectric plants divert some of the water through tunnels from the Niagara River before it reaches Niagara Falls. For scenic reasons, however, the amount of water that may be diverted is regulated by a treaty between the United States and Canada.

在尼亚加拉瀑布的上游，美国与加拿大的水力发电厂通过隧道将尼亚加拉河部分水量分流用来发电。但是，美加两国签署了一个条约来规定可以被分流的水量。

The treaty states that at least 2,800 cubic meters of water a second must pass over the falls during daylight hours of the tourist season. At other times, the flow may be decreased to 1,400 cubic meters a second.

条约规定，在旅游季节，白天流过瀑布的水量不少于2800立方米/秒。其余时候，水量可降至1400立方米/秒。