Let the River Run

Things happen in nature, and we humans sometimes hinder nature from happening. For example - a river dam. When used in a river, the dam stops or slows the natural water flow. But sometimes things get better but sometimes things get worse. This is the case for the Grand Canyon. In some rivers, natural, flood, and retreat times, or other geographic events occur at certain times of the year. In March 1996, the first flood in 30 years devastated the Grand Canyon.

The article I read was written by David R. Brower of Sierra Club. It tells you how David Broll had the opportunity to quit Construction of the Glen Canyon Dam and did not need to build a dam in the first place. Over 40 years ago Glen Canyon dam was built in the northern part of Arizona State. Dam now has water in Lake Powell, a canyon under water, and many hikers and scenic tourists have to travel and have fun. David R. Brower says, "We can now change it, let's drain the Powell Lake, let it go through the dam that caused it to the Colorado River, and regain the wonders of Glen Canyon and its canyons "(Par 3). It is said that the beauty of the canyon returns to its original state again by draining Powell Lake. Broll also stated that the Glen Canyon Dam was built as an electric power project to raise funds for the Colorado River Storage Project, allowing the US Government to build wasteful dams (par 5).

John Wesley Powell was the first person who tried to explain how the Grand Canyon was formed. Powell is known as the "first river" theory, theoretically eroding the ancient river to the Colorado Plateau and rising at the same speed as the plateau 12. This slow and gentle process adapts well to the unity of governance. But during the next 50 and 75 years, it was rejected by most geologists. The fatal blow to it involves radioactive isotope dating of the marginal rock. The previous river theory was replaced by the concept of "flooding of rivers". Capture of a river indicates that the Grand Canyon "cuts" through the plateau from the west and "captures" rivers that develop in various directions, through a process called forward erosion. This is a theory held today by many evolutionary geologists, but has undergone a major change in the past 30 years.