Some people believed that the rapid development of tourism and industry ruined the scenic beauty of the Niagara Falls area. In 1885, the government of New York took control of the land bordering the American Falls.It then established the Niagara Falls Park, covering about 430 acres (174 hectares) on the land. 

曾经有人认为旅游业与工业的快速发展会毁掉尼亚加拉瀑布周边地区的美景。1885年，纽约州政府获得了美国瀑布周围地区的使用权，随后，该政府便创建了尼亚加拉瀑布公园，其陆地面积为430英亩（174公顷）。

In 1886, Canada established Queen Victoria Park on 196 acres (79 hectares) of land near the Horseshoe Falls. Since the 1880’s, much more land in the Niagara Falls area has been set aside for parks, especially on the Canadian side.

1886年，加拿大在马蹄瀑布附近建立了占地196英亩（79公顷）的维多利亚女王公园。自19世纪80年代起，尼亚加拉瀑布周边越来越多的地区被辟为公园，在加拿大境内尤为如此。

Rockslides have gradually changed the appearance of Niagara Falls through the years. In 1931, about 73,000 metric tons of rock fell from the Niagara Falls. 

长期以来，岩崩不断地改变着尼亚加拉瀑布的形象。1931年，大约75000吨的岩石从美国瀑布崩落。

Several years later, approximately 27,000 metric tons of rock broke off the upper edge of the Horseshoe Falls. In 1954, about 167,800 metric tons of rock tumbled from the American Falls and nearby Prospect Point.

几年之后，约27000吨的岩石从马蹄瀑布的上缘飞崩而下。1954年，又有大约167，800吨的岩石从美国瀑布及其附近的观景台隆隆滚下。

In 1969, U.S. Army engineers built a dam to stop the flow of water temporarily over the American Falls. A board of experts from the United States and Canada then studied the rock ledge to determine how to prevent further erosion. 

1969年，为了暂时阻止美国瀑布上游的水流，美国陆军部一批工程师设计修建了一座大坝。来自美国与加拿大两国的专家对本地区岩石的突出部位进行了研究，以期确定如何防止岩石进一步被侵蚀。

However, the board decided that the cost of halting erosion would be too high. It recommended that nothing be done except small measures to improve public safety.

然而，专家们最终认定，阻止岩石侵蚀的成本太高。他们继而建议除了采取一些小的措施来保护公众安全以外，人们最好不要轻举妄动。

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