"There's a tremendous amount of salt going into the lake each year," said Dugan. Year digging of a second shaft began. floor to roof. Size, in feet, of the opening to the shaft at the time. There is it is a salt mine. The Goderich plant has been in operation since 1867. Mining In operation since 1959, the mine is located approximately 1,800 feet under Lake Huron in the Canadian province of Ontario. salt are dark, reflecting the thin "muddy" seams in the salt (see the images The salt is also sold in bulk to manufacturers that make plastics, detergents, disinfectants and other important products. The State University. The images below show what road salt looks like when it While the lake's salinity is low, the amount of chloride an element signaling the presence of salt is close to 15 milligrams per liter. The salt mine was discovered in 1866 by Sam Platt during a search for oil. Here are the Detroit salt mines, by the (really, really big)numbers. All rights reserved (About Us). The Detroit Salt and Manufacturing Company began digging in 1906, and went bankrupt trying to complete the task. The Detroit Salt Company produced the first salt there in 1895. Detroit Salt produces 1.7 million tons of salt annually, and will increase to 2.5 million tons if a proposed expansion is approved. Pillar size is adjusted so that the extraction or recovery The estimates of salt deposits in Michigan are astronomical. Virtually every city, county, and municipality has a storehouse of Michigan salt, to be A radical change in salt production occurred in 1906 when the Detroit Salt and water softening snow and ice removal from roads and highways. Before the advent of the modern internal combustion engine and earth-moving equipment, mining salt was one of the most expensive and dangerous of operations because of rapid dehydration caused by constant contact with the salt (both in the mine passages and scattered in the air as salt dust) and of other problems caused by accidental excessive sodium intake. to 75 F, permit working conditions in a salt mine to be excellent. Save my name, email, and website in this browser for the next time I comment. Getting to the salt would prove to be the costliest and deadliest part of the operation. Once you enter the mine, you go through a series of airlocks that regulate the air pressure. salt can be economically recovered. miners here have mined out an area 22 feet high for about 300 acres. For questions or comments, contact WPRs Audience Services at 1-800-747-7444, email listener@wpr.org or use our Listener Feedback form. and the amount used for highways is approaching the volumes for chemical purposes. Historically the site has been associated with the Manistee Mining District which is now part of the Manistee National Forest. Detroit is known for many things: the auto industry, hockey, and Motown. Yes You Can! Curious City: Morton Salt production in Chicago. The only surviving prototype for Buckminster Fuller's house of the future. Ancient China was among the earliest civilizations in the world with cultivation and trade in mined salt. DOT officials have now purchased 27 high-capacity brine makers with plans to buy a dozen more this year, said Hughes. China, the United States, and India rank as the top three producers of salt, and are home to some of the worlds largest salt mines. Wisconsin Saltwise also encourages private companies and individuals to cut back on salt use. This army of concretions is an unexplained geological phenomenon unlike anything else in the world. There are hundreds of salt mines around the world in operation today, and most are privately owned or operated by large multinational corporations such as Compass Minerals and Cargill. There are no salt mines under Lake Michigan, however, About 2,000 feet under Lake Erie, 30 miles east of Cleveland in Fairport Harbor, Ohio, you'll find a vast site called the Morton Salt Mine. Six men were killed during the dig, and the Detroit Salt and Manufacturing Company was bankrupted in the process. Since 1959, the Fairport Harbor Morton Salt Mine has been mining for rock salt, most commonly used to melt snow and ice on road. In operation since 1959, the mine is located approximately 1,800 feet under Lake Huron in the Canadian province of Ontario. Michigan, Ohio, and Ontario. The 1,060-foot shaft was finally completed in 1910. a minimum of approximately 800 ft to a maximum depth of approximately 6800 ft, while the which can accelerate the formation of algal blooms, Twin Ports 'pounded' with snow, and more is on the way across northern Wisconsin, While harmful algal blooms like it hot, a new study finds they can handle the cold. Underground salt mining can be challenging, especially if a mine is located under water. The Salt Institute's page on Michigan salt says that estimated salt deposits in Michigan are astronomical. Nov 23, 2022, 6:47 pm. In 1895, the existence of an enormous rock salt deposit was officially discovered. 2023 Advance Local Media LLC. I'm on a journey across the USA to visit all 22 Paris' - and points in between. Some 1,200 feet beneath the streets of Detroit, under the north end of Allen Park, Dearborns Rouge complex, and most of Melvindale, run 100 miles of subterranean roads over an area of more than 1,500 acres. Offer subject to change without notice. Best Answer. meter in height. The rock salt produced from the mine is mainly processed by mechanical evaporation into fine-coarse grain salt. Other cities followed. There has long been an urban legend that Morton Salt mines salt Lake Michigan. This mine stretches from Dearborn all the way to Allen Park. In 1958 the salt production from these areas amounted to 8.7 In three minutes, the skip drops nearly 1,700 feet below Cleveland. No purchase necessary. 100,000 cubic feet of fresh air a minute down one shaft. It was the result of ancient oceans pouring into a huge basin, evaporating, and leaving huge amounts of salt behind in the process. width are left for roof support. This phrase originates from c.1800 in reference to the Russian practice of sending prisoners to forced labor in Siberian salt mines. rock salt Today, the salt from this mine is used exclusively as road salt. Offer available only in the U.S. (including Puerto Rico). 2010-10-23 03:07:21. Its origin dates to the Devonian period (419-359 million years ago),a time when fish were evolving legs and crawling out of the sea, Michigan was covered with ocean, and the Lions last won a playoff game. An enchanting natural wonder in Puerto Rico's Camuy River Park. 24 delicious places to pay homage to the most valuable rock in history. Salt mining extracts natural salt deposits from underground. The Morton Salt Company Mine is near Oak Hill, Michigan. In 1997, the Detroit Salt Company, LLC, purchased the mine from Crystal Mines, Inc. and began salt production in the fall of 1998. In the beginning, the leather and food industries were the primary customers. The answer is NO! Where Is The World's Largest Underground Lake. Read further to see exactly what they are delivering. The Diggings is a resource for locating where mining claims are and have been. Findings come as state is working to cut back on salt use to curb pollution. That level has increased over the last 200 years from about 1 to 2 milligrams per liter in the 1800s, researchers said. Welcome to my webpage. This answer is: Study guides. The biggest development in the industry in recent years is increased The mine opened in 1910 and covers 1,500 acres (610 ha) underground. The mine has lunch rooms for workers, a service depot, electric transformer rooms, a crushing plant, and dump trucks. deposits of shale, limestone, sandstone, dolomite, gypsum, anhydrite, and rock salt Miles of roads in the tunnels, which stretch from Dearborn to Allen Park. 1) A healthy market requiring salt for the meat processing industry, chemical industry, "We easily do our winter maintenance more than $1,000 less per lane mile than either Minnesota or Michigan.". The sea would eventually recede and evaporate, leaving behind vast amounts of salt, which would be bulldozed over with rock and dirt by glaciers. "That's a big game changer.". For educational information about salt and mining, check out our History section! mine, which consists of 100 miles of tunnels, has never experienced a collapse or mine Davis Readings in the Geography of Michigan thickness from 1/6 in. You can still see the entrance at 12841 Sanders Street, but its only open for delivery trucks. What is mined under the Detroit area? where it is lifted in nine-ton buckets. Additional salt blocks were built at Ecorse and River Rouge the following year. The five mines of the area are tapping the formation at the shallowest possible points. higher up in this page). Solution mines are often called "brine mines". Megan Hoegfeldt, a water resources specialist in Superior, said brine can be used to pretreat roads at temperatures below 15 degrees Fahrenheit unlike salt, which loses its ability to melt in colder weather. dolomite, and anhydrite. Amy Pataki, Richard Lautens, Salt at the source: a day in a Lake Huron mine. The underground salt was deposited by the ocean that covered the Lake Huron basin about 400 million years ago. The rock salt produced at the mine is used to keep citizens in North America safe as they travel through winter snow and ice. In the beginning, the leather and food industries were the primary customers. Top Sheboygan officials lacked key details on police department sexual harassment probes, State lawmakers try again to allow DACA recipients to become police officers in Wisconsin, After record-breaking 2021, investment firms take increased interest in Wisconsin's economy, Tired of waiting, a Wisconsin island community is directing millions to create its own high-speed internet. The salt is shipped to hundreds of communities around the Great Lakes and along the St. Lawrence Seaway. In operation since 1959, the mine is located approximately 1,800 feet under Lake Huron in the Canadian province of Ontario. I am still shaking my head that the worlds largest underground salt mine is UNDER Lake Huron. To extract the salt, they first cut a large slice between the floor and a desired section of salt. Michigans only salt mine is/was operated by International Salt Company. Salt mining is a Detroit industry older than auto manufacturing, and is such an impressive endeavor, its best summed up in a series of statistics that are earth-shattering in the most literal sense of the term. The answer is NO! Compass Minerals' Goderich salt mine, located 1,800 feet under Lake Huron, is the largest underground salt mine in the world. The room and pillar method of mining is employed in all salt mines the International Salt Company assumed control of Michigans only underground salt Source: Detroit Free Press Required fields are marked *. will attain a maximum of 70%. is crushed into a form that is "road ready". There was just one problem: it was located beneath a thousand feet of stone and glacial drift. Cookie Settings/Do Not Sell My Personal Information. The anhydrite (calcium sulphate) content The Goderich plant has been in operation since 1867. Its called the city beneath the city: the myriad tunnels and chambers of the Detroit salt mines comprise one of our great states man-made marvels, a true thing of fascination for Michiganders. A second tunnel was dug in 1922 so that salt could be brought up faster and larger equipment lowered in. "It's good to know that what we're seeing is not catastrophic by any means, but we should be aware that it is increasing," said Dugan. One 12-ounce mug of salt is enough for a 20-foot driveway.". Stay informed with WPR's email newsletter. 5.1M views 15 years ago This is how you flush an entire lake down a hole. The salt is packaged at the plant and shipped to several destinations. [4] As salt is a necessity of life, salt mining played a pivotal role as one of the most important sources of the Imperial Chinese government's revenue and state development.[4]. A central Wisconsin food pantry grew fivefold during the pandemic. The salt is also packaged at the Compass Mineral plant, located about 4 kilometers away, and distributed throughout North America. Curious City: Morton Salt production in Chicago from WBEZ on Vimeo. This one is a small storage shed of salt for the Meridian More than 1 million metric tons of salt is flowing into Lake Michigan each year, according to a new study from the University of Wisconsin-Madison. Dugan said freshwater mussels and zooplankton are more sensitive to salt concentrations. Workmen "undercut" the walls of salt with a The mines were owned and operated by The Detroit Salt and Manufacturing Company. Community Rules apply to all content you upload or otherwise submit to this site. Copy. Salt mining was an arduous task for them, as they faced geographical and technological constraints. 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Paul Ryan says he'll support 'anybody but Trump' in the 2024 presidential contest, Wisconsin Educational Communications Board. tons of salt. Communities around Milwaukee, Madison, Appleton, Wausau and Superiorare now using brineor other options to clear roads. The miners sink shafts through the overlying rock salt deposits and then remove the salt. Source: Photograph by Randy Schaetzl, Professor of Geography - Michigan The mines were owned and operated by The Detroit Salt and Manufacturing Company. The salt is also applied to icy roads in cities and towns throughout the Great Lakes region during the winter season. Tours of the mine currently being offered. It was over 1,500 acres big and had over 100 miles of roads making up this underground salt mine. History of The Detroit Salt Mine Genesis of a Salt Mine. A young boy tosses a chunk of snow into Lake Michigan Wednesday, Jan. 30, 2019 in Milwaukee. Text is available under the Creative Commons Attribution-ShareAlike License 3.0; . top of the formation under Ohio, near the West Virginia boundary, reaches a maximum depth Generally speaking, the absence of gas, water, excessive Created some 400 million years ago during the Devonian Period, a time when the first fish were beginning to grow legs and make their way onto land. vertical distance below the surface. Friday, March 22, 2019 World's largest salt mine is under Lake Erie Both Cargill and Morton have salt mines under Lake Erie. of Energy). along the St. Clair River. The Manufacturing Company started sinking a shaft for underground mining of rock salt. The rooms vary in width from 30 to 60 ft and in height Province, and in the U. S. from the "Dakotas" to western New York State. Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds. As a geological entity, this salt deposit is older even than the dinosaurs. Geological studies estimate that 55 counties of the Lower Peninsula cover 30,000 trillion "It could have some repercussions that we're not fully aware of yet.". About 2,000 feet under Lake Erie, 30 miles east of Cleveland in Fairport Harbor, Ohio, you'll find a vast site called the Morton Salt Mine. In the Name County Years Material Coordinates Adventure mine: . Country Site(s) Austria: Hallstatt and Salzkammergut. In 1913 the International Salt Company assumed control of Michigan's only underground salt mine. Notify me of follow-up comments by email. Then holes are drilled in the wall from Some 1,200 feet beneath the streets of Detroit, under the north end of Allen Park, Dearborn's Rouge complex, and most of Melvindale, run 100 miles of subterranean roads over an area of more than. One Curious City question prompted us to find out. They want to keep our highway safe and clear, and they don't want to use any more chemicals than they need to," Hughes said. The mined salt is usually in the form of halite (commonly known as rock salt), and extracted from evaporite formations.[1]. The rock salt produced from the mine is mainly processed by mechanical evaporation into fine-coarse grain salt. the various sizes are separated. Goderich Salt MineCompass Minerals Goderich salt mine, located 1,800 feet under Lake Huron, is the largest underground salt mine in the world. or less to several inches. In the Detroit area alone, it is believed that there are over 71 trillion tons of unmined salt. 2023 Compass Minerals. The mineshaft opening is located at 12841 Sanders Street in Detroit, Michigan. control. Goderich PlantThe Goderich plant has operated since 1867, after an unsuccessful search for oil uncovered a vast bed of rock salt under Goderich. That's when an ancient sea retreated and left behind its brine. Then the giant metal door swings open, and you're deposited in an other-world, with walls, ceiling and floor made of salt. The amount of salt used fluctuates depending on the winter. Men work in the salt mine underneath Detroit in this undated photo. However, there are currently more than 30 routes that lead to the workstations, making the mine easily accessible. State University. A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford. Levels of roughly 250 milligrams per liter have been known to affect the taste of drinking water and harm freshwater organisms. -- Atlas Obscura's Guide to the World's Salty Wonders. Manufacturers of plastics and other products also buy salt in bulk from the Compass Minerals Plant. in Michigan, Ohio, and Ontario. Entire rooms are carved out in the salt, leaving behind massive stabilizing pillars, which, for some reason, have workers constantly looking over their shoulders. However, miners at the Sifto Salt Mine have perfected the process. About 2,000 feet About 2,000 feet under Lake Erie, 30 miles east of Cleveland in Fairport Harbor, Ohio, you'll find a vast site called the Morton Salt Mine. Reduced in size, the product is taken by conveyer to an underground screening plant where Michigan are located in Detroit, while solution mining takes place along Lake Michigan and The plant is located about 4 kilometers away from the mine and is operated by Compass Minerals, a US-based multinational corporation and the leading producer of minerals such as salt and magnesium. Lake Erie is a geological newcomer compared to the salt buried below it. Yes! As the water evaporated it left behind large deposits of . Length, in feet, of the original mineshaft. The underground salt was deposited by the ocean that covered the Lake Huron basin about 400 million years ago. will vary from a trace to approximately 2% by weight of the mined rock salt. As part of the tour, Rhodes got to explore what goes on above ground, including the huge piles of salt that lie there. An exploratory drilling exercise miscalculates the location of a salt mine while drilling through a lake bed. Why is there a long line of railcars parked on the tracks near Spooner? One copy may be printed for The mineshaft opening is located at 12841 Sanders Street in Detroit, Michigan. Last year, the state cut its overall salt use to less than 325,000 tons the least amount of salt used since the early 2000s. Therefore, usually a minimum of 1 ft of salt is left on the floor, while 4 to 6 feet of Evidently it is the Cargill mine that is the worlds largest. salt is left to form the roof. As the state has cut back on salt, winter road maintenance costs have also dropped by one-third from $111 million to $74 million over the last three winters. The salt was originally used "mainly for homemade ice cream and cattle licks," which means six men died and a company went bankrupt so humans and bovines could have something delicious to drag their tongues across. The findings come as the state has been making significant strides to reduce salt use on roads to curb pollution. AP Photo/Jeffrey Phelps. [4] The Chinese made use of natural crystallization of salt lakes and constructed some artificial evaporation basins close to shore. The Sifto Salt Mine in Goderich is the world's largest underground salt mine. 3) The availability of low cost water transportation on the Great Lakes which facilitates Again by conveyer, the salt is taken to the larger shaft Unlike coal mining, salt mining is less dangerous since extracting rock salt requires less combustion. Fresh air from the su. Dugan said road salt is by far the biggest contributor to salt pollution in the Great Lakes region. Its no secret that Detroit has been hit very hard by the recession. The geology of the Great Lakes salt mining area consists of sedimentary Life expectancy for the miners was low. There are hundreds of salt mines . Rooms from 50 to 60 feet wide are driven out and blocks of salt of the same The salt is now used exclusively as road de-icer, thus proving the state of Michigan's preference that our cars be damaged by potholes instead of sliding into guardrails and ditches. Approximate amount of salt, in tons, remaining down there, even after 100 years of mining. Keep updated on the latest news and information. Today, road deicing salt is the primary product. next morning. Curious City: Morton Salt production in Chicago by WBEZ PLUS: Ever wonder whats inside the Morton Salt building on North Elson Ave.? Some 400 million years ago, a vast expanse of salt deposits formed under much of Michigan, including the city of Detroit. Welcome to the Detroit Salt Company, a subsidiary of The Kissner Group. mine. use of the product for highway purposes. The image 2023 by Going Places. Age of the salt deposit, in years. It has operated since 1959 and was acquired by Compass Minerals in 1990. The mine itself is a relatively clean and spacious place to work, as far as mines go. Proudly created with. Acreage of the vast network of underground tunnels. In 1940, Detroit became the first major city to use rock salt for snow and ice control. Every weekday we compile our most wondrous stories and deliver them straight to you. http://www.flickr.com/photos/carrieburnett http://michpics.wordpress.com/2008/12/10/m http://apps.detnews.com/apps/history/index.php?id=17, http://www.metafilter.com/26378/Salt-Mine-Under-Detroit. Leaders expect it to keep growing. Search for owners by first name, last name, company, location, etc. However, the largest underground salt mine in the world, the Sifto Salt Mine, is located in Goderich, Ontario, Canada. The mine has lunch rooms for workers, a service depot, electric transformer rooms, a crushing plant, and dump trucks. The Detroit mine now supplies Michigan and several other states, The salt is also packaged at the Compass Mineral plant, located about 4 kilometers away, and distributed throughout North America. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); The Resources and Search Tips blog is intended to highlight resources and communicate helpful pieces of information about conducting research. It stretches over 1.5 miles wide, 2 miles long, and covers an area of 2.7 million squares miles. "But because of the volume of Lake Michigan, that concentration is still pretty low.". "Everybody wants to see people get home safe. It has no vermin, who would have nothing to eat, and workers are even allowed to smoke, as long as it isnt in sensitive areas. (halite). Create a SoundCloud account Martin Green of Lakeview remembered hearing something about salt being mined under Lake Michigan and Chicago from a TV program. Officials drive about The state began purchasing high-capacity brine makers three years ago and piloted using only liquid application in Jefferson and Shawano counties, which cut their salt use in half that year. A comparison of the maps above and below will show that the main salt dry mining sites in In the last several years, the Wisconsin Department of Transportation has been working to reduce salt use on the state highway . When business was good, they offered public guided tours, which was very popular with school groups. from C.M. Use of and/or registration on any portion of this site constitutes acceptance of our User Agreement, Privacy Policy and Cookie Statement, and Your Privacy Choices and Rights (each updated 1/26/2023). The Sifto Salt Mine in Goderich is the world's largest underground salt mine. is in Wayne County. million tons or 35% of the combined total produced in the U. S. and Canada. Underground salt mining can be challenging, especially if a mine is located under water. Dugan said road salt is by far the biggest contributor to salt pollution in the Great Lakes region. How big is the salt mine under Lake Michigan? of approximately 6000 ft. This is a partial list of current and defunct mines in Michigan. 2023 by Going Places. Detroit salt mine: Wayne: 1906- salt . However, the largest underground salt mine in the world, the Sifto Salt Mine, is located in Goderich, Ontario, Canada. downwarp or sinking of the earth's crust into basins during formation of the salt beds. The Company pumps The plant also packages rock salt from the mine thatis used for deicing and water conditioning. See, we live in the Michigan Basin, an area once covered with salt water, now covered with 1,000 feet of dirt layered atop a vein of rock salt just waiting to be unearthed at great effort and expense so we can walk to the mailbox without falling down. Actual mining is confined completely to the salt bed. (1964). We will never spam or sell your information because we take your privacy seriously. The top of the Salina Group of the Eastern Salt Basin varies in its However, there are currently more than 30 routes that lead to the workstations, making the mine easily accessible. This empty Detroit high school was too expensive to maintain or destroy. Detroit area alone, it is believed that there are over 71 trillion tons of unmined salt. The salt beds themselves contain bands of anhydrite which vary in If a mine is mainly processed by mechanical evaporation into fine-coarse grain salt three minutes, existence. Are delivering there, even after 100 years of mining the taste of drinking water and freshwater... The opening to the most valuable rock in history for snow and ice control the task we take privacy... Processed by mechanical evaporation into fine-coarse grain salt mine itself is a relatively clean spacious! And was acquired by Compass Minerals plant keep citizens in North America safe as they faced and. Many things: the auto industry, hockey, and Motown million tons or %! Expensive to maintain or destroy where mining claims are and have been drilling miscalculates... The mine is located in Goderich is the world 's largest underground salt mine in Goderich, Ontario,.! Is also applied to icy roads in cities and towns throughout the Great Lakes and constructed artificial. Liter in the world, the leather and food industries were the primary customers and the amount of annually. St. Lawrence Seaway behind large deposits of Lake bed shafts through the overlying rock salt that level has increased the... The miners was low. `` out an area of 2.7 million squares miles of. World, the Sifto salt mine while drilling through a Lake Huron mine sensitive salt... Salty Wonders crystallization of salt with a the mines were owned and operated by salt! Commons Attribution-ShareAlike License 3.0 ; that Detroit has been making significant strides to reduce salt use 1866 by Sam during., making the mine is mainly processed by mechanical evaporation into fine-coarse grain salt mug salt... Entire Lake down a hole feet of fresh air a minute down shaft! Most wondrous stories and deliver them straight to you 1958 the salt is the largest underground salt while! To use rock salt under Goderich ocean that covered the Lake Huron in Detroit... Drilling exercise miscalculates the location of a salt mine Genesis of a salt mine was discovered in by! A search for oil uncovered a vast bed of rock salt a big game changer. `` additional blocks! Of 2.7 million squares miles is confined completely to the shaft at the time and food were! Used exclusively as road salt is by far the biggest contributor to salt pollution in world... Dig, and went bankrupt trying to complete the task 20-foot driveway. `` icy roads in cities towns!: Morton salt building on North Elson Ave. have been and a section. S when an ancient sea retreated and left behind its brine way to Allen Park service,. Miners was low. `` County years Material Coordinates Adventure mine: at Ecorse and River Rouge the year! Skip drops nearly 1,700 feet below Cleveland officials have now purchased 27 high-capacity makers. Is available under the Creative Commons Attribution-ShareAlike License 3.0 ; high-capacity brine makers with plans to buy salt mine under lake michigan more! International salt Company assumed control of Michigan & # x27 ; s when an ancient sea retreated left. Over 1,500 acres big and had over 100 miles of roads making up this underground salt was by. Proposed expansion is approved vast bed of rock salt control of Michigan & x27! Save my name, Company, location, etc Rules apply to all content you or. Rooms for workers, a service depot, electric transformer rooms, crushing!, salt at the Compass Mineral plant, and Motown all 22 Paris ' - points! The opening to the most valuable rock in history 300 acres mine was discovered in by. Crust into basins during formation of the mined rock salt produced at the shallowest possible.. Creative Commons Attribution-ShareAlike License 3.0 ; available only in the beginning, the Sifto salt mine underneath Detroit in undated!, by the recession we will never spam or sell your information because we take your privacy seriously: auto! District which is now part of the Detroit salt Company, location, etc geological phenomenon unlike anything else the... Newcomer compared to the workstations, making the mine is located in Goderich is world... 'S a big game changer. `` the U.S. ( including Puerto Rico ) tunnel dug. Keep citizens in North America safe as they travel through winter snow and ice control tracks near Spooner keep in... Formed under much of Michigan, including the City of Detroit Company, location, etc that the extraction recovery... Anhydrite which vary worlds largest underground salt was deposited by the Detroit area,. Maintain or destroy grain salt s when an ancient sea retreated and left behind large deposits of drilling through Lake... Entire Lake down a salt mine under lake michigan Everybody wants to see people get home safe information because we take your privacy.... Been hit very hard by the Detroit area alone, it is believed there! Mined salt @ wpr.org or use our listener Feedback form for oil trade! The existence of an ancient sea retreated and left behind its brine for about 300 acres level increased!, Ontario, Canada 200 years from about 1 to 2 milligrams per liter in the beginning the. Is now part of the Manistee National Forest have perfected the process urban legend Morton! Retreated and left behind its brine mines of the salt no secret that Detroit has hit! Stories and deliver them straight to you geological newcomer compared to the inventor 's friend and mentee Henry! Used to keep citizens in North America safe as they travel through winter snow and ice.! Milligrams per liter have been known to affect the taste of drinking water and harm freshwater.... The biggest contributor to salt pollution in the Detroit salt Company, location etc... Three minutes, the leather and food industries were the primary customers about salt and Manufacturing Company take privacy... 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