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Aquifers of the United States Withdrawal rates from the Ogallala Aquifer.. This is a list of some aquifers in the United States.. Map of major US aquifers by rock type. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to groundwater wells and springs.
It is part of an aquifer system found in Mississippian or younger stratigraphic units in the Michigan Basin. [1] The aquifer covers approximately 11,000 square miles (28,000 km 2) [2] and is estimated to contain 4 cubic miles (17 km 3) of water, approximately 50 feet (15 m) to 400 feet (120 m) underground. [3]
Michigan has almost 1,200 public and private beaches on lakes and rivers. [7] The Michigan Department of Natural Resources operates six fish hatcheries and stocks game fish in many lakes and rivers. [8] The state has over 1,300 boating access sites and over 80 harbors and marinas operated by various government entities. [9]
The state has 11,037 inland lakes comprising 1,305 square miles (3,380 km 2) of inland water. No point in Michigan is more than 6 miles (9.7 km) from an inland lake or more than 85 miles (137 km) from one of the Great Lakes. [5] The state's numerous rivers are generally short and shallow, though several are navigable by recreational watercraft.
Speakers around the Great Lakes began to pronounce the short a sound, /æ/ as in TRAP, as more of a diphthong and with a higher starting point in the mouth, causing the same word to sound more like "tray-ap" or "tray-up"; Labov et al. assume that this began by the middle of the 19th century. [23]
Most of the world’s top corporations have simple names. Steve Jobs named Apple while on a fruitarian diet, and found the name "fun, spirited and not intimidating." Plus, it came before Atari in ...
An unconfined aquifer has no impermeable barrier immediately above it, such that the water level can rise in response to recharge. A confined aquifer has an overlying impermeable barrier that prevents the water level in the aquifer from rising any higher. An aquifer in the same geologic unit may be confined in one area and unconfined in another.
Michigan (/ ˈ m ɪ ʃ ɪ ɡ ən / ⓘ MISH-ig-ən) is a state in the Great Lakes region of the Upper Midwestern United States.It shares water and land boundaries with Minnesota to the northwest, Wisconsin to the west, Indiana and Illinois to the southwest, Ohio to the southeast, and the Canadian province of Ontario to the east, northeast and north.