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Green Bay National Wildlife Refuge
Green Bay National Wildlife Refuge is a National Wildlife Refuge of the United States located in the state of Wisconsin. It includes five all or part of six islands in Lake Michigan: Hog Island, Plum Island, Pilot Island, part of St. Martin Island and Rocky Island. Additionally it includes part of Detroit Island. The islands are near Washington Island off the tip of the Door Peninsula of Wisconsin and the Garden Peninsula of Michigan. History An executive order in 1913 declared Hog Island a national preserve for the benefit of native birds. Plum and Pilot Island were transferred from the U.S. Coast Guard to the U.S. Fish and Wildlife Service in 2007. The Green Bay National Wildlife Refuge became the second National Wildlife Refuge in Great Lakes area and the 28th overall. Gravel Island National Wildlife Refuge was created under the same executive order. In 1970, the islands which at the time where included in the Green Bay National Wildlife Refuge and Gravel Island Nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington, Door County, Wisconsin
Washington Island is a town in northern Door County, Wisconsin, United States, with a population of 708 at the 2010 census. The unincorporated communities of Detroit Harbor and Washington are located in the town. The town of Washington Island is made up of a group of small islands that includes Plum Island, Detroit Island, Hog Island, Rock Island, Pilot Island, Fish Island, and the largest, Washington Island. The majority of the population of the town lives on Washington Island and many of the other smaller islands are partly or entirely protected areas with no year-round population, if any at all. As a result, the area is rarely if ever referred to as the town of Washington or just Washington; more commonly the names of the individual islands are used as a reference. Most of the people who settled on Washington Island were Scandinavian immigrants, especially Icelanders. Today, Washington Island is one of the oldest Icelandic communities in the United States and among the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lakes, which are Lake Superior, Superior, Lake Michigan, Michigan, Lake Huron, Huron, Lake Erie, Erie, and Lake Ontario, Ontario and are in general on or near the Canada–United States border. Hydrologically, lakes Lake Michigan–Huron, Michigan and Huron are a single body joined at the Straits of Mackinac. The Great Lakes Waterway enables modern travel and shipping by water among the lakes. The Great Lakes are the largest group of freshwater lakes on Earth by total area and are second-largest by total volume, containing 21% of the world's surface fresh water by volume. The total surface is , and the total volume (measured at the low water datum) is , slightly less than the volume of Lake Baikal (, 22–23% of the world's surface fresh water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada Yew
''Taxus canadensis'', the Canada yew or Canadian yew, is a conifer native to central and eastern North America, thriving in swampy woods, ravines, riverbanks and on lake shores. Locally called simply "yew", this species is also referred to as American yew or ground-hemlock. Most of its range is well north of the Ohio River. It is, however, found as a rare ice age relict in some coves of the Appalachian Mountains. The southernmost colonies are known from Ashe and Watauga Counties in North Carolina. Description and ecology It is usually a sprawling shrub, rarely exceeding 2.5 m tall. It sometimes forms strong upright central leaders, but these cannot be formed from spreading branches, only from the original leader of the seedling plant. The shrub has thin scaly brown bark. The leaves ( needles) are lanceolate, flat, dark green, long and broad, arranged in two flat rows either side of the branch. The seed cones are highly modified, each cone containing a single see ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolomite (rock)
Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO3)2. It occurs widely, often in association with limestone and evaporites, though it is less abundant than limestone and rare in Cenozoic rock beds (beds less than about 66 million years in age). The first geologist to distinguish dolomite rock from limestone was Belsazar Hacquet in 1778. Most dolomite was formed as a magnesium replacement of limestone or of lime mud before lithification. The geological process of conversion of calcite to dolomite is known as dolomitization and any intermediate product is known as dolomitic limestone. The "dolomite problem" refers to the vast worldwide depositions of dolomite in the past geologic record in contrast to the limited amounts of dolomite formed in modern times. Recent research has revealed sulfate-reducing bacteria living in anoxic conditions precipitate dolomite which ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnesian Escarpment
The Magnesian escarpment is the most westerly of three prominent escarpments that run north-south in Wisconsin. All three escarpments are formed by the edges of layers of sedimentary rocks. The easternmost and most prominent escarpment is the Niagara Escarpment formed where younger and harder layers of dolomite overlay softer sedimentary rocks. The Black River Escarpment is capped by another layer of relatively harder rocks, overlay older softer rocks. The rocks of the Magnesian layer overlay rocks of the Cambrian The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ... Period, the oldest sedimentary rocks that contain fossils. References Landforms of Wisconsin Escarpments of the United States {{Wisconsin-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black River Escarpment (Wisconsin)
The Black River Escarpment is a geological feature in Eastern Wisconsin. The escarpment runs parallel to and between the Niagara Escarpment and the Magnesian Escarpment. The escarpment marks the boundary between bedrock from Lower Magnesian limestone bedrock and earlier Black River limestone. The escarpment emerges from Green Bay, on Lake Michigan Lake Michigan is one of the five Great Lakes of North America. It is the second-largest of the Great Lakes by volume () and the third-largest by surface area (), after Lake Superior and Lake Huron. To the east, its basin is conjoined with that o .... The escarpment's boundaries are not always visible to the untrained eye, but are marked by cliffs in some regions. References {{coord, 43, 45, 57, N, 88, 58, 24, W, type:landmark_region:US-WI_scale:1000000, display=title Landforms of Wisconsin Escarpments of the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niagara Escarpment
The Niagara Escarpment is a long escarpment, or cuesta, in Canada and the United States that runs predominantly east–west from New York through Ontario, Michigan, Wisconsin, and into Illinois. The escarpment is most famous as the cliff over which the Niagara River plunges at Niagara Falls, for which it is named. The escarpment is a UNESCO World Biosphere Reserve. The reserve has the oldest forest ecosystem and trees in eastern North America. The escarpment is not a fault line but the result of unequal erosion. It is composed of an outcrop belt of the Lockport Formation of Silurian age, and is similar to the Onondaga Formation, which runs in a parallel outcrop belt just to the south, through western New York and southern Ontario. The escarpment is the most prominent of several escarpments formed in the bedrock of the Great Lakes Basin. From its easternmost point near Watertown, New York, the escarpment shapes in part the individual basins and landforms of Lake Ontario, Lak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners and inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilot Island Light
The Pilot Island Light is a lighthouse located near Gills Rock, on Pilot Island at the east end of Death's Door passage, in Door County, Wisconsin. The building's plant is similar to Pottawatomie Light, but is made of brick instead of stone. Until 1910 it was called Port des Morts Island Light. The light was converted to electric in 1942 and automated in 1962. History Frequent and oppressive fog made the passage hazardous, as well as making it an extremely lonely and forbidding place to work.Pilot Island Lighthouse ''Door County Maritime Museum'', (Archived February 5, 2012) A signal was installed in 1862. In 1864 it was replaced by a |
Plum Island Range Lights
The Plum Island Range Lights are a pair of range lights located on Plum Island in Door County, Wisconsin. They were part of the Plum Island United States Life-Saving Station. Plum Island was transferred to the United States Fish and Wildlife Service in 2007 and became part of the Green Bay National Wildlife Refuge. The life-saving station was listed on the National Register of Historic Places in 2010. Plum Island is seasonally open to the public for day-time use. History Plum Island is an island at the western shore of Lake Michigan in the southern part of the town of Washington in Door County, Wisconsin, United States. Plum Island is physically located between the mainland of Door County and Washington Island, in the channel known as Death's Door due to the large number of shipwrecks in the channel. A lighthouse was first built on Plum Island in 1849, but was abandoned in 1858 and the light moved to nearby Pilot Island. The front and rear range lights were built at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Range Lights
Leading lights (also known as range lights in the United States) are a pair of light beacons used in navigation to indicate a safe passage for vessels entering a shallow or dangerous channel; they may also be used for position fixing. At night, the lights are a form of leading line that can be used for safe navigation. The beacons consist of two lights that are separated in distance and elevation, so that when they are aligned, with one above the other, they provide a bearing. Range lights are often illuminated day and night. In some cases the two beacons are unlighted, in which case they are known as a range in the United States or a transit in the UK. The beacons may be artificial or natural. Operation Two lights are positioned near one another. One, called the front light, is lower than the one behind, which is called the rear light. At night when viewed from a ship, the two lights only become aligned vertically when a vessel is positioned on the correct bearing. During t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayville, Wisconsin
Mayville is a city in Dodge County, Wisconsin, United States, located along the Rock River and the Horicon Marsh. The population was 5,154 at the 2010 census. Geography Mayville is located at (43.497044, -88.547871). According to the United States Census Bureau, the city has a total area of , of which, is land and is water. Demographics 2010 census As of the census of 2010, there were 5,155 people, 2,172 households, and 1,404 families living in the city. The population density was . There were 2,321 housing units at an average density of . The racial makeup of the city was 96.6% White, 0.2% African American, 0.2% Native American, 0.6% Asian, 1.4% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 2.7% of the population. There were 2,172 households, of which 30.6% had children under the age of 18 living with them, 49.5% were married couples living together, 9.8% had a female householder with no husband present, 5.4% had a male househo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
