|
Nipissing Great Lakes
Nipissing Great Lakes was a prehistoric proglacial lake. Parts of the former lake are now Lake Superior, Lake Huron, Georgian Bay and Lake Michigan. It formed about 7,500 years before present (YBP). The lake occupied the depression left by the Labradorian Glacier. This body of water drained eastward from Georgian Bay to the Ottawa valley. This was a period of isostatic rebound raising the outlet over time, until it opened the outlet through the St. Clair valley.Publication 9. Geological Series 7; Surface Geology and Agricultural Conditions of the Southern Peninsula of Michigan; Frank Leverett with a Chapter on Climate by C. F. Schneider;Michigan Geological and Biological Survey Lansing Michigan; 1911 Origin The Lake formed from the aggregation of Glacial Lakes Houghton, Chippewa and Hough, and Stanley as water levels increased. Levels returned and Lake Chippewa again flowed through the canyon at Mackinac until around 7,500 YBP. At that time, the waters in the Michigan basi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Peninsula Of Michigan
The Upper Peninsula of Michigan – also known as Upper Michigan or colloquially the U.P. – is the northern and more elevated of the two major landmasses that make up the U.S. state of Michigan; it is separated from the Lower Peninsula by the Straits of Mackinac. It is bounded primarily by Lake Superior to the north, separated from the Canadian province of Ontario at the east end by the St. Marys River, and flanked by Lake Huron and Lake Michigan along much of its south. Although the peninsula extends as a geographic feature into the state of Wisconsin, the state boundary follows the Montreal and Menominee rivers and a line connecting them. First inhabited by Algonquian-speaking native American tribes, the area was explored by French colonists, then occupied by British forces, before being ceded to the newly established United States in the late 18th century. After being assigned to various territorial jurisdictions, it was granted to the newly formed state of Michigan a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saginaw Bay
Saginaw Bay is a bay within Lake Huron located on the eastern side of the U.S. state of Michigan. It forms the space between Michigan's Thumb region and the rest of the Lower Peninsula of Michigan. Saginaw Bay is in area. It is located in parts of five Michigan counties: Arenac, Bay, Huron, Iosco, and Tuscola. Watershed The Saginaw Bay watershed is the largest drainage basin in Michigan, draining approximately 15% of the total land area.Saginaw River and Bay Area of Concern U.S. Environmental Protection Agency The watershed contains the largest contiguous freshwater coastal wetland system in the . The Saginaw Bay Watershed Initiative N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niagara Gorge
Niagara Gorge is an long canyon carved by the Niagara River along the Canada–United States border, between the U.S. state of New York and the Canadian province of Ontario. It begins at the base of Niagara Falls and ends downriver at the edge of the geological formation known as the Niagara Escarpment near Queenston, Ontario, where the falls originated about 12,500 years ago. The position of the falls has receded upstream toward Lake Erie because of the falling waters' slow erosion of the riverbed's hard Lockport dolomite (a form of limestone that is the surface rock of the escarpment), combined with rapid erosion of the relatively soft layers beneath it. This erosion has created the gorge. The force of the river current in the gorge is one of the most powerful in the world; because of the dangers this presents, kayaking the gorge has generally been prohibited. On multiple occasions, the rapids of the gorge have claimed the lives of people attempting to run them. However ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Algonquin
Lake Algonquin was a prehistoric proglacial lake that existed in east-central North America at the time of the last ice age. Parts of the former lake are now Lake Huron, Georgian Bay, Lake Superior, Lake Michigan, Lake Nipigon, and Lake Nipissing. The lake varied in size, but it was at its biggest during the post-glacial period and gradually shrunk to the current Lake Huron and Georgian Bay. About 7,000 years ago, the lake was replaced by Lake Chippewa and Lake Stanley as the glaciers retreated and 3,000 years later by the current Lakes Michigan, Huron, and Superior. Physiography About 11,000 years before present, the Laurentian Glacier had retreated northward, forming a boundary across the northern edges of Lake Superior and Lake Huron. The water level was at above sea level, creating a single body of water in the three basins of Lake Michigan, Lake Huron and Lake Superior.Bulletin 4, The Glacial Lakes around Michigan; William R. Farrand, University of Michigan, Ann Arbor, Mich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_total ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illinois River
The Illinois River ( mia, Inoka Siipiiwi) is a principal tributary of the Mississippi River and is approximately long. Located in the U.S. state of Illinois, it has a drainage basin of . The Illinois River begins at the confluence of the Des Plaines and Kankakee rivers in the Chicago metropolitan area, and it generally flows to the southwest across Illinois, until it empties into the Mississippi near Grafton, Illinois. Its drainage basin extends into southeastern Wisconsin, northwestern Indiana, and a very small area of southwestern Michigan in addition to central Illinois. Along it's shores are several ports, including Peoria, Illinois. The river was important among Native Americans and early French traders as the principal water route connecting the Great Lakes with the Mississippi. The French colonial settlements along these rivers formed the heart of the area known as the Illinois Country in the 17th and 18th centuries. After the construction of the Illinois and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mattawa, Ontario
Mattawa is a town in northeastern Ontario, Canada on Algonquin Nation land at the confluence of the Mattawa and Ottawa Rivers in Nipissing District. Mattawa means "Meeting of the Waters" in the Algonquin language. The first Europeans to pass through this area were Étienne Brûlé and Samuel de Champlain. History The area was first inhabited by native people who used the Mattawa River as an important transportation corridor for many centuries. In 1610, Étienne BrûléCanadian Heritage Rivers System: Mattawa River fact sheet, Ministry of Natural ResourcesOnline version) and in 1615, Samuel de Champlain were the first Europeans to travel through the Mattawa area.Archeological and Historic Sites Board of Canada For some 200 years thereafter, it was a link in the important water route leading from Montreal west to Lake Superior. Canoes travelling west up the Ottawa turned left at "the Forks" (the mouth of the Mattawa) to enter the "''Petite Rivière''" ("Small River", as compared ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding ( gneissic banding) but poorly developed schistosity and indistinct cleavage. In other words, it is a metamorphic rock composed of mineral grains easily seen with the unaided eye, which form obvious compositional layers, but which has only a weak tendency to fract ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Huron, Michigan
Port Huron is a city in the U.S. state of Michigan and the county seat of St. Clair County. The population was 30,184 at the 2010 census. The city is adjacent to Port Huron Township but is administered separately. Located along the St. Clair River, it is connected to Point Edward, Ontario in Canada via the Blue Water Bridge. The city lies at the southern end of Lake Huron and is the easternmost point on land in Michigan. Port Huron is home to two paper mills, Mueller Brass, and many businesses related to tourism and the automotive industry. The city features a historic downtown area, boardwalk, marina, museum, lighthouse, and the McMorran Place arena and entertainment complex. History This area was long occupied by the Ojibwa people. French colonists had a temporary trading post and fort at this site in the 17th century. In 1814 following the War of 1812, the United States established Fort Gratiot at the base of Lake Huron. A community developed around it. The early 19th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Nipissing
Lake Nipissing (; french: lac Nipissing, oj, Gichi-nibiinsing-zaaga’igan) is a lake in the Canadian province of Ontario. It has a surface area of , a mean elevation of above sea level, and is located between the Ottawa River and Georgian Bay. Lake Nipissing is the third-largest lake entirely in Ontario. It is relatively shallow for a large lake, with an average depth of only . The shallowness of the lake makes for many sandbars along the lake's irregular shoreline. The lake reaches a maximum depth of 64 m (210 ft) near the mouth of the French River, off the shore of Blueberry Island. The lake has many islands most of which are protected under the Protection of Significant Wetlands scheme, controlled by the Ministry of Natural Resources and Forestry. The largest population centre on the lake's shoreline is the city of North Bay. North Bay sits along the lake's northeastern shoreline. Other notable towns include Callander (south of North Bay along Highway 11). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Bay, Ontario
North Bay is a city in Northeastern Ontario, Canada. It is the seat of Nipissing District, and takes its name from its position on the shore of Lake Nipissing. North Bay developed as a railroad centre, and its airport was an important military location during the Cold War. History The site of North Bay is part of a historic canoe route where Samuel de Champlain took a party up the Ottawa River, through present-day Mattawa, on to Trout Lake and via the La Vase Creek to Lake Nipissing. Apart from Indigenous people, voyageurs and surveyors, there was little activity in the Lake Nipissing area until the arrival of the Canadian Pacific Railway (CPR) in 1882. That was the point where the Canada Central Railway (CCR) extension ended. The CCR was owned by Duncan McIntyre who amalgamated it with the CPR and became one of the handful of officers of the newly formed CPR. The CCR started in Brockville and extended to Pembroke. It then followed a westward route along the Ottawa River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> North America")
.jpg "Click for more on -> Illinois River")
