Mount Saint Helens is located in the state of Washington and recently erupted in 1990.. The eruption demolished 229 square miles and burned a few million dollars worth of timber. Mount Saint Helens has erupted five times in the 20th century.
The Grand Canyon has been carved by the Colorado River for 17 million years. The width of the canyon ranges from four to 18 miles and is 277 miles in length. The first Europeans to visit the Grand Canyon were conquistador Francisco Vazquez de Coronado and Captain Garcia Lopez de Cardenas who were helped by Hopi Indian guides.
Mount Everest is the tallest mountain on the planet sitting approximately 8.85 kilometers higher than sea level. The mountain was named after Sir George Everest, British Surveyor-General of India, in 1865. Sir Edmund Hillary and Tenzing Norgay were the first to reach the top.
Lester Howe entered what would soon be called Howe Caverns on May 22,1842, with his friend Henry Westel for the first time, according to Howecaverns.com. Each time they went into the cave, they would venture deeper and deeper. The two of them explored approximately one and a half miles of underground tunnels together. Lester Howe bought the cavern from Henry Westel, who owned the land above the cave at the time, for $100. Lester Howe opened the cave as a commercial venture in 1843. Howe Caverns is located in Howes Cave, N.Y., and is still open to the public.
The Great Lakes hold a total of 6 quadrillion gallons of water, which is 20 percent of the world's fresh surface water. Six states border the Great Lakes and all of the lakes aside from Lake Michigan border both Canada and the United States. The Great Lakes were formed approximately 20,000 years ago when a giant glacier scraped out massive chunks of land in the region, according to NASA.
