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★ Mount Roosevelt - history of montana by period ..



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Mount Roosevelt
                                     

★ Mount Roosevelt

Mount Roosevelt is a 5.835-foot mountain peak located 6 miles Northwest of Snoqualmie pass, in Eastern king County, Washington. It is part of the cascade range and is located in the Alpine lakes wilderness, on land managed by the mount Baker-Snoqualmie National forest. Mount Roosevelt is located above the Western shore of snowy lake and 2 miles North of Caleetan peak, which is its closest higher neighbor. Sedimentary runoff from the mountain drains into tributaries of the Snoqualmie river. This mountain name was officially adopted in 1989 by the American Board on geographic names.

                                     

1. Climate. (Климат)

Mount Roosevelt is located in the marine climate zone of the West coast of Western North America. Most weather fronts originate in the Pacific ocean and move northeast toward the cascade mountains. As the fronts approach, they are pushed up by the peaks of the cascade range, forcing them to dump their moisture in the form of rain or snowfall on the cascade Orographic lift. As a result, the Western side of the cascades experiences high precipitation, especially during the winter months in the form of snowfall. During the winter months, the weather is usually cloudy, but due to high pressure over the Pacific ocean, which increases during the summer months, there is often little or no cloud cover during the summer. Due to the Maritime influence, snow tends to be wet and heavy, resulting in a high avalanche hazard.

                                     

2. Geology. (Геология)

The wild nature of the Alpine lakes is characterized by one of the harshest reliefs of the cascade range with rocky peaks and ridges, deep glacial valleys and granite walls dotted with more than 700 mountain lakes. Geologic events that occurred many years ago have created a diverse topography and dramatic elevation changes over the cascade range, resulting in various climatic differences. These climatic differences lead to a diversity of vegetation that defines the ecoregions in this area. The elevation range of this area is about 1.000 feet 300 m at lower elevations to over 9.000 feet 2.700 m at mount Stewart.

The history of the formation of the Cascade mountains goes back millions of years to the late Eocene epoch. As the North American plate dominated the Pacific plate, episodes of volcanic magma activity persisted. In addition, small fragments of the oceanic and continental lithosphere, called terranes, created the North cascades about 50 million years ago.

During the Pleistocene period, Dating back more than two million years ago, glaciation, advancing and retreating, repeatedly scoured the landscape, leaving deposits of stone debris. The last glacial retreat in the Alpine lakes region began about 14.000 years ago and occurred North of the Canada–us border 10.000 years ago. The U-shaped cross-section of the river valleys is a result of this recent glaciation. Rises and cracks in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the wilderness of the Alpine lakes.

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Free and no ads
no need to download or install

Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

online intellectual game →