Search results
Results from the WOW.Com Content Network
The Gogebic Range is an elongated area of iron ore deposits located within a range of hills in northern Michigan and Wisconsin just south of Lake Superior. It extends from Lake Namakagon in Wisconsin eastward to Lake Gogebic in Michigan, or almost 80 miles.
Geelwal Karoo mineral sand deposit, on the west coast of South Africa. Tectonic activity, which results in coastlines rising from the ocean, may also cause a beach system to become stranded above the high-water mark and lock in the heavy mineral sands. Similarly, a beach system that is drowned by the subsidence of a coastline may be preserved ...
Sand pit along the Mississippi River, United States Artificial lake with frac sand dredger. Sand mining is the extraction of sand, mainly through an open pit (or sand pit) [1] [failed verification] [2] but sometimes mined from beaches and inland dunes or dredged from ocean and river beds. [3]
Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper: Alabastine Mine: Kent: 1907– gypsum: Arcadian mine: Houghton: 1898–1908: copper
The formation is a mostly unconfined aquifer, [34] called the Jacobsville aquifer, [17] that covers an area of 4,363 square miles (11,300 km 2). [35] Despite being a sandstone aquifer, it has a low permeability [ 36 ] and water largely moves through cracks and fissures which extend to a depth of about 100 to 150 ft (30 to 46 m).
Following is a list of dams and reservoirs in Michigan. Major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
Map of Michigan rivers. Michigan has about 242 streams (rivers and creeks) with a combined length of 36,350 miles (58,500 km) and about 11,000 lakes and ponds. [1] Michigan borders four of the five Great Lakes and is a signatory to the Great Lakes Compact. [2]
Tahquamenon Falls in the Upper Peninsula of Michigan.. The heavily forested Upper Peninsula is relatively mountainous in the west. The Porcupine Mountains, which are part of one of the oldest mountain chains in the world, [3] rise to an altitude of almost 2,000 feet (610 m) above sea level and form the watershed between the streams flowing into Lake Superior and Lake Michigan.