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The Michigan Limestone and Chemical Company, founded in 1910, began operation in 1912. Purchased by Carl D. Bradley and the United States Steel Corporation in 1920, the company came under the ownership of U.S. Steel upon Bradley's death in 1928. In 1951 the company became a division of the corporation.
Pictured Rocks in the distance. Pictured Rocks National Lakeshore is a U.S. National Lakeshore in the Upper Peninsula of Michigan, United States. It extends for 42 mi (68 km) along the shore of Lake Superior and covers 73,236 acres (114 sq mi; 296 km 2 ). The park has extensive views of the hilly shoreline between Munising and Grand Marais in ...
Jacobsville Sandstone is a red sandstone formation, marked with light-colored streaks and spots, primarily found in northern Upper Michigan, portions of Ontario, and under much of Lake Superior. Desired for its durability and aesthetics, the sandstone was used as an architectural building stone in both Canada and the United States.
A Petoskey stone is a rock and a fossil, often pebble-shaped, that is composed of a fossilized rugose coral, Hexagonaria percarinata. [1] Such stones were formed as a result of glaciation, in which sheets of ice plucked stones from the bedrock, grinding off their rough edges and depositing them in the northwestern (and some in the northeastern) portion of Michigan's lower peninsula.
Rockport State Recreation Area. / 45.1997°N 83.3949°W / 45.1997; -83.3949. Rockport State Recreation Area is a 4,237-acre (17.15 km 2) state park located along the shore of Lake Huron in Alpena and Presque Isle counties in the state of Michigan. It is operated by the Michigan Department of Natural Resources and was established in 2012.
Copper mining in the Upper Peninsula boomed, and from 1845 until 1887 (when it was exceeded by Butte, Montana) the Michigan Copper Country was the nation's leading producer of copper. In most years from 1850 through 1881, Michigan produced more than three-quarters of the nation's copper, and in 1869 produced more than 95% of the country's copper.
Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc. Not every state has an official state mineral, rock, stone and/or gemstone, however.
United States. The Traverse Group is a geologic group in Michigan, Indiana and Ohio comprising middle Devonian limestones with calcareous shale components. [1] [2] Its marine fossils notably include Michigan's state stone, the Petoskey stone (the extinct coral Hexagonaria percarinata ), among other corals and records of ancient marine life.
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