The Colorado River

The present configuration of the Great Lakes basin is the result of the movement of massive glaciers through the mid-continent, a process that began about one million years ago. . . . Studies in the Lake Superior region indicate that a river system and valleys formed by water erosion existed before the Ice Age. The Glaciers undoubtedly scoured these valleys, widening and deepening the and radically changing the drainage of the area (Encyclopedia Britannica )

The Chattahoochee River is located in Georgia and flows southwesterly towards Alabama. Evidence indicates that humans have been inhabitants of the Chattahoochee River for an extremely long period.

The Grand Canyon is carved by the Colorado River in the state of Arizona. The Grand Canyon is 277 miles long, about 18 miles wide and a depth of more than a mile. Any clues that scientis usually rely on have been sweap away by the rivers water or barried by landslides or destroyed by volcanos. Rocks give geologiest complete geological rocords of earth; as if each rocks told a story that was billions of years old. One clue is the "Black rocks" located at the end of this river.

Along this journey created by nature, the river interacts with man’s influence to encapsulate the full geographic experience of this region. The succession of dams along the river’s path is a major contribution to how man has decided to mesh with the river. The dams have created reservoirs for water supplies, harnessed energy to provide electric power to the southwestern region, and controlled flooding. Flood control was the main concern at the time between the years 1905 and 1907 when large floods broke through the irrigation gates and destroyed crops in California. The flooding was so large it actually created a 450 square mile sea, named the Salton Sea. As a result of this major disaster, ideas were formulated to

By analyzing the structure (i.e. faults, folds, tectonic plates), we have one manner in which to answer this question. Internal forces of the Earth reach and break through the surface to form volcanoes, mountains, plateaus, and many other topographical features which may later cause these layers to tip, fold, warp, or fracture. Faults play a major role in the formation of landscapes. So, by first looking at faults, hopefully we can come closer to truly understanding how Canyonlands National Park has come to be. On plateaus such as the Colorado Plateau, faults and weak rock tend to be synonymous in their locations. Faults, which are cracks or fractures in Earth's crust, form when internal heat forces and pressure from underground forces shifts the plates, thus creating stress within the plate. Faults commonly occur in elevated regions such as the Rocky Mountain region (which includes the Colorado Plateau and Canyonlands National Park). As previously mentioned, faults tend to be surrounded by weak rock. Therefore, a river or other flowing water easily cuts through this

A description of the grand canyon rock layers would include the Colorado River running at the bottom of the inner gorge with flats on both sides which consist of tapeat sandstone layers. There is also the Vishnu Complex, consisting of rocks that have been changed by heat and are buried at the lowest layers. These are tilted and are called the “Grand Canyon Supergroup” the Grand Canyon supergroups are at least 12,000 ft in thickness. These rocks or (the “Inner Gorge”) are usally steep and narrow with hard deep cuts in the lower tilted layers which raise above sea level.

So you now know how sedimentary rocks are formed and how the Colorado River majorly eroded all the rock creating canyons. But here comes the million dollar question: where did all the rocks come from? The answer to that question is The Continental Drift. The Earth's continents are not fixed in place, but rather float on a sea of molten rock, meaning that they move around quite a bit. Over 250 million years, that “quite a bit” can turn into land masses moving thousands of miles. Moreover, the Earth is made up of 20 Tectonic plates. Seven of these plates are very large and consist of entire continents or sea floors. The plate that the Grand Canyon is located on is called “The North American Plate”. At one time, this plate was considerably further south and consequently had a very different climate than

Colorado has a very rich history that often gets overlooked due to other big states that generally take up most of the headlines; however, that does not mean that there has not been big movements and big names to come through the Centennial State. Colorado has had many attractions, such as open land, beautiful landscapes, mining, and the hot springs to name a few. The ladder in that group of attractions brought to Colorado a man that was known in the west, and would forever be remember and one of the most famous gunman, Doc Holliday. Doc Holliday had a short, but eventful life and making his way towards Colorado at the end was what he had hope would save his life.

Since the settlement of the American West, rivers have experienced changes in the natural flows and movements. Among these processes flooding has become controlled as dams have been built. Esselman et al. (2011) tracked numerous categories of anthropocentric activities through geographical informational systems. The team found that upstream fish habitats were exponentially impacted by human activities downstream. In addition to the upstream movement of impacts human impacts also travel downstream. Different human impacts on the Yellowstone River versus the Platte River have greatly affected the river ecosystems.

The Meramec Watershed has been threatened by multiple dam projects for the past two hundred years (East-West Gateway Council of Governments, 2007). However, through continued efforts by local land owners and interested parties, this river has never been dammed. In the Meramec’s more recent history, the Meramec Lake project was brought forth in the 1970s and successfully stopped in the early 1980s by grassroots efforts from local activists (East-West Gateway Council of Governments, 2007). In fact, the U.S Army Corps of Engineers were so confident the dam would get official approval, construction for the project began before the debate was over. Today, remnants of the initial construction can be seen in parks such as Meramec State Park and Meramec Spring Park, yielding to the natural ecosystems and geology that dominate the

Have you ever heard of the Little Grand Canyon? The providence canyon was not even a canyon it was a dense forest. That all changed when farmers moved into the area in the 1800's They stared growing crop and cotton. Well the Little Grand Canyon is where the testament to the man's influence to the land. The gullies that are in the little Grand Canyon are as deep as 150 it was made there by poor farming practices in the 1800's. , When the framers was cutting down trees and everything they did not realize that this that these traditional farming methods was initiating a string of events that would change the landscape.

Running water moves sediment in the processes of erosion and deposition, causing different types of landforms. As you can tell in the picture above, Michigan’s topography plays a huge role on where the faster and slower flowing rivers are located and the transportation of the materials in the water depends on the speed of the rivers. Erosion is the breaking down of those materials by the agent, water. The water can erode the channel laterally and vertically, in the end, making the channel wider and deeper. There are different types of erosion: hydraulic action, corrasion, corrosion, cavitation, and attrition. Hydraulic action (above on the right) takes place at rapids and waterfalls because the force of the water removes rock particles from the bed and banks of the river. A great example of this in Michigan is Canyon Falls on the Sturgeon River. At the waterfall, the water is rushing at a high velocity, especially in the spring, causing rock particles to move downstream, creating a wider and deeper river. Eventually the rivers velocity begins to decrease and particles start to deposit. This could also occur because lack of precipitation or an increase in evaporation. The deposition of materials at different locations of the river that they began changes the shape of the river, and effects Michigan as a whole in the end. The particles can travel all the way to the mouth of the river, in this case, Lake Superior, causing

Imagine about 100 years into the future, do you see a flourishing earth with sustained life and beautiful scenery or do you imagine a deserted waste land run dry of all natural resources? Which would you rather have? The book Saints at the River written by novelist Ron Rash explores how the single act of a small girl’s drowning can lead to a moral and ethical conundrum about whether alterations should be made to the river to retrieve her body and how this is essential to the families need to grieve over the loss of their child or how the additions of things like a temporary Dam causes more damage than its worth as expressed by those who advocate for the protection of this natural free-flowing river. The protection of natural rivers, like the

A river is the same way you can force it to irrigate your crops by creating irrigation canals. Also, they can be used for fishing and ships can trade goods over the water also. When Machiavelli wrote that rivers and men can’t be trusted I also agree with this too, because a man naturally will have a harder time keeping a secret because there is that thrill that only certain people know and they want to be the one to gossip about it. In a different way rivers can’t be trusted because rivers flood unpredictably (unless that river is the Nile) and when it floods it spreads havoc throughout the

With human development, industrial pollution and other factors all contribute to the deteriorated condition of the river, which makes it difficult to determine the dams’ environmental impact in isolation. CITE That said, the current operations of the dam hamper and potentially prevent environmental improvement of the Colorado. In order to preserve some semblance of the Colorado ecosystem, man must restore the natural processes that created the ecosystem. The real question is how to do that, whether via dam decommission or a less extreme policy change.