|
Black River (Gogebic County)
The Black River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed May 1, 2012 river on the Upper Peninsula of the U.S. state of Michigan, flowing mostly in Gogebic County into Lake Superior at . Its source at is a boreal wetland on the border with Iron County, Wisconsin. The northern section of the river, within the boundaries of the Ottawa National Forest, was designated a National Wild and Scenic River in 1992. At the Lake Superior mouth of the Black River is Black River Harbor, a former fishing station where commercial fishermen brought in cargoes of lake trout. The North Country Trail crosses the river here via a suspension footbridge. Waterfalls The Wild and Scenic River section of the Black River of Gogebic County is known for the many waterfalls produced as the river tumbles down from near Copper Peak to Lake Superior. The river drops more than over five separate named cataracts beginning from its mouth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Superior
Lake Superior in central North America is the largest freshwater lake in the world by surface areaThe Caspian Sea is the largest lake, but is saline, not freshwater. and the third-largest by volume, holding 10% of the world's surface fresh water. The northern and westernmost of the Great Lakes of North America, it straddles the Canada–United States border with the province of Ontario to the north and east, and the states of Minnesota to the northwest and Wisconsin and Michigan to the south. It drains into Lake Huron via St. Marys River, then through the lower Great Lakes to the St. Lawrence River and the Atlantic Ocean. Name The Ojibwe name for the lake is ''gichi-gami'' (in syllabics: , pronounced ''gitchi-gami'' or ''kitchi-gami'' in different dialects), meaning "great sea". Henry Wadsworth Longfellow wrote this name as "Gitche Gumee" in the poem ''The Song of Hiawatha'', as did Gordon Lightfoot in his song " The Wreck of the ''Edmund Fitzgerald''". According to oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bessemer, Michigan
Bessemer is a city in the U.S. state of Michigan. As of the 2020 census, the city population was 1,805. It is the county seat of Gogebic County. The city is surrounded by Bessemer Township, but the two are administered autonomously. It is on U.S. Route 2 with Ironwood to the west and Wakefield to the east. The Big Powderhorn, Blackjack, and Indianhead ski areas are located within a few miles of Bessemer. Cross-country skiing and snowmobiling are also very popular in this area, due to lake-effect snow influenced by nearby Lake Superior; the area is often referred to as "Big Snow Country." Recreational opportunities in the summer months include Bluff Valley Park, the scenic Black River Falls, and access to the Iron Belle Trail. History In 1880, a hunter and trapper Richard Langford, discovered iron ore under an overturned birch tree. However, Captain N. D. Moore is credited with disclosing the ore which led to the development of the Colby property. Mining began in 1883. By 188 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows. The rates at which such processes act control how fast a surface is eroded. Typically, physical erosion procee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foam
Foams are materials formed by trapping pockets of gas in a liquid or solid. A bath sponge and the head on a glass of beer are examples of foams. In most foams, the volume of gas is large, with thin films of liquid or solid separating the regions of gas. Soap foams are also known as suds. Solid foams can be closed-cell or open-cell. In closed-cell foam, the gas forms discrete pockets, each completely surrounded by the solid material. In open-cell foam, gas pockets connect to each other. A bath sponge is an example of an open-cell foam: water easily flows through the entire structure, displacing the air. A sleeping mat is an example of a closed-cell foam: gas pockets are sealed from each other so the mat cannot soak up water. Foams are examples of dispersed media. In general, gas is present, so it divides into gas bubbles of different sizes (i.e., the material is polydisperse)—separated by liquid regions that may form films, thinner and thinner when the liquid phase drain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone Falls
Sandstone (also New Richmond or New River Falls) is an unincorporated community in Summers County, West Virginia, United States. It lies along West Virginia Route 20 and the New River to the north of the city of Hinton, the county seat of Summers County. Its elevation is 1,352 feet (412 m). It has a post office, with the ZIP code of 25985. Historic variant names were New River Falls and New Richmond. Sandstone takes its name from an old sandstone quarry. Sandstone is the birthplace of Cornelius Burdette, winner of an Olympic gold medal during the 1912 Summer Olympics. Part of Paramount's 1994 film '' Lassie'' was shot here. Sandstone Falls Sandstone Falls is located on the New River to the south of the community. Sandstone Visitors Center The Sandstone Visitors Center was built by the National Park Service in order to provide outreach and awareness to the various environmental issues along the New River Gorge. It is located 1 mile off the Sandstone Exit on I-6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gorge Falls
A canyon (from ; archaic British English spelling: ''cañon''), or gorge, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. Rivers have a natural tendency to cut through underlying surfaces, eventually wearing away rock layers as sediments are removed downstream. A river bed will gradually reach a baseline elevation, which is the same elevation as the body of water into which the river drains. The processes of weathering and erosion will form canyons when the river's headwaters and estuary are at significantly different elevations, particularly through regions where softer rock layers are intermingled with harder layers more resistant to weathering. A canyon may also refer to a rift between two mountain peaks, such as those in ranges including the Rocky Mountains, the Alps, the Himalayas or the Andes. Usually, a river or stream carves out such splits between mountains. Examples of mountain-type c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Conglomerate Falls
Great Conglomerate Falls is a waterfall on the Black River in Michigan Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and the .... It is split into two drops in the summertime when water is lower. The falls takes its name from the large conglomerate outcropping in the middle of the river that forms its segmented appearance. Notes {{reflist Landforms of Gogebic County, Michigan Waterfalls of Michigan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfall
A waterfall is a point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several ways, but the most common method of formation is that a river courses over a top layer of resistant bedrock before falling on to softer rock, which Erosion, erodes faster, leading to an increasingly high fall. Waterfalls have been studied for their impact on species living in and around them. Humans have had a distinct relationship with waterfalls for years, travelling to see them, exploring and naming them. They can present formidable barriers to navigation along rivers. Waterfalls are religious sites in many cultures. Since the 18th century they have received increased attention as tourist destinations, sources of hydropower, andparticularly since the mid-20th centuryas subjects of research. Definition and terminology A waterfall is gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapids
Rapids are sections of a river where the river bed has a relatively steep gradient, causing an increase in water velocity and turbulence. Rapids are hydrological features between a ''run'' (a smoothly flowing part of a stream) and a ''cascade''. Rapids are characterized by the river becoming shallower with some rocks exposed above the flow surface. As flowing water splashes over and around the rocks, air bubbles become mixed in with it and portions of the surface acquire a white color, forming what is called "whitewater". Rapids occur where the bed material is highly resistant to the erosive power of the stream in comparison with the bed downstream of the rapids. Very young streams flowing across solid rock may be rapids for much of their length. Rapids cause water aeration of the stream or river, resulting in better water quality. Rapids are categorized in classes, generally running from I to VI. A Class 5 rapid may be categorized as Class 5.1-5.9. While Class I rapids are eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algonquian Peoples
The Algonquian are one of the most populous and widespread North American native language groups. Historically, the peoples were prominent along the Atlantic Coast and into the interior along the Saint Lawrence River and around the Great Lakes. This grouping consists of the peoples who speak Algonquian languages. Before Europeans came into contact, most Algonquian settlements lived by hunting and fishing, although quite a few supplemented their diet by cultivating corn, beans and squash (the " Three Sisters"). The Ojibwe cultivated wild rice. Colonial period At the time of the first European settlements in North America, Algonquian peoples occupied what is now New Brunswick, and much of what is now Canada east of the Rocky Mountains; what is now New England, New Jersey, southeastern New York, Delaware and down the Atlantic Coast through the Upper South; and around the Great Lakes in present-day Minnesota, Wisconsin, Michigan, Illinois, Indiana and Iowa. The homeland of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Bessemer, Michigan")
Saunders_Quarry-1.jpg "Click for more on -> Sandstone")
