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List of visible crater sites, in the United States.
Arizona Crater Site
Arizona Meteor Crater is the best preserved crater on Earth! Arizona Meteor Crater also known as (Barringer Meteorite Crater) is located about 35 miles east of Flagstaff, near Winslow, AZ. Meteor Crater was the first crater to be identified as an impact crater. Between 20,000 to 50,000 years ago, a small asteroid about 80 feet in diameter impacted the earth and formed the crater. The Meteor produced high enough temperatures and pressures to transform carbon minerals into diamonds and lonsdaleite. Meteor crater is about 4,000 ft in diameter, highest point on rim 5,723 feet and some 570 feet deep. Meteor Crater is today a popular Arizona tourist attraction.
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Idaho Crater Site
Beaverhead Crater is an impact structure located in central Idaho. Estimated at 50 to 90 miles in diameter, Beaverhead Crater is one of the eight largest impact craters on Earth, and possibly the largest in the US. Its age is estimated to be about 850 to 900 million years. Other than the original shatter cones found on the perimeter, there is little visible evidence of the structure.
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Indiana Crater Site
Kentland Crater, also known as the Kentland structure or the Kentland disturbed area, is a meteor crater located near the town of Kentland in Newton County, Indiana. Kentland Crater itself is a circular dome, about 4.5 miles in diameter, is deeply eroded and buried in glacial debris. Its age is estimated to be less than 97 million years. The Shakopee dolomite at the center of the structure is about 450 million years old.
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Iowa Crater Site
Manson Crater is located near the site of Manson, Iowa. Evendence is shown where a meteorite landed 74 million years ago. It was one of the biggest impacts by an object from outer space to happen in North America and was previously thought to have led to the extinction of the dinosaurs until age dating tests proved that Manson Crater was too old. No surface evidence exists due to coverage by glacial till and the site where the crater lies buried is now a flat landscape. But, hidden about 20 to 90 metres below the surface is a buried structure about 38 km in diameter. It lies under the southeast corner of Pocahontas County and extends under portions of three adjoining counties.The impactor is considered to have been a stoney meteorite about two kilometres in diameter.
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Kansas Crater Site
Haviland Crater, also called the Brenham Crater, is a meteor crater in Kiowa County, Kansas. Haviland Crater is an oval-shaped crater 50 feet in diameter, making it one of the smallest impact craters in the world. Its age is estimated to be less than 1000 years. Over 15,000 pounds of pallasite meteorites have been recovered from the Haviland Crater site.
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Kentucky Crater Site
Middlesboro Crater, is a meteor crater in Kentucky. The Middlesboro Crater is located in the Appalachian Mountains, between the Cumberland Mountains and Pine Mountain. The town of Middlesborough, built in the crater, was established in 1886 to exploit iron and coal deposits. Middles Crater is approximately 3 miles in diameter and the age is estimated to be less than 300 million years. Middlesboro Crater is exposed to the surface.
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Missouri Crater Sites
Weaubleau-Osceola Crater structure is thought to be a meteorite impact site in western Missouri near the towns of Osceola and Weaubleau. The Weaubleau-Osceola Crater is one of the fifty largest known impact craters on earth and the fourth largest in the United States. It is believed to have been caused by a 1200-ft meteoroid between 310 and 340 million years ago. Its structure is well preserved. Conglomerate rocks are found in the area of Osceola. These rocks are nearly perfectly round, and are referred to locally simply as "round rocks" or "Missouri rock balls". Current theory suggests that these rocks are chert concretions, created when the impact threw pieces of shale away from the center of the crater, and later silica-rich materials formed around the shale seeds.
Missouri
Crooked Creek Crater, is an impact crater in Crawford County, Missouri. Crooked Creek Crater is 7 km in diameter and the age is estimated to be 80 million years. The crater is exposed to the surface.
Missouri
Decaturville Crater is an impact crater in Missouri. Decaturville Crater is 6 km in diameter and the age is estimated to be less than 300 million years. The crater is exposed to surface.
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New Jersey Crater Site
Chesapeake Bay, NJ
Chesapeake Bay Crater buried 300500 meters beneath the lower part of the Chesapeake Bay and its surrounding peninsulas. This impact crater was formed by a bolide that impacted the eastern shore of North America about 35.5 million years ago. Chesapeake Bay Crater is one of the best-preserved marine impact craters, and the second largest impact crater in the U.S. The entire circular crater is about 85 km in diameter and 1.3 km deep, an area twice the size of Rhode Island, and nearly as deep as the Grand Canyon.
New Jersey
Toms Canyon Crater, an impact crater is located about 100 mi. east of Atlantic City, New Jersey. Toms Canyon Crater is the site where one or more objects from space struck the Atlantic continental shelf, about 35 million years ago.
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Ohio Crater Site
Serpent Mound Crater is a meteor crater in Ohio. The Serpent Mound Crater, an effigy mound, located on a plateau in Brush Creek Valley in Adams County, is located inside the crater. Serpent Mound Crater is 8 km in diameter and the age is estimated to be less than 320 million years. Serpent Mound Crater is exposed to the surface, 1,330 feet long and three feet high, and is the largest effigy earthwork in the world.
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Utah Crater Site
Upheaval Dome Crater is an impact crater in Canyonlands National Park, near the town Moab Utah. Upheaval Dome Crater is 10 km in diameter and the crater is estimated to be less than 170 million years old. Upheaval Crater is clearly visible on the surface as bright brown and black coloured concentric rings.
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Texas Crater Sites
Sierra Madera Crater is a meteor crater in southwestern Pecos County, Texas. The central peak of the Sierra Madera Crater structure rises 793 feet above the surrounding desert. It is 13 km in diameter and the age is estimated to be less than 100 million years. Sierra Madera Crater is exposed to the surface.
Texas
Odessa Meteor Crater is a meteor crater near the city of Odessa, Texas. The Handbook of Texas Online describes the Odessa Meteor Crater as the largest of several smaller craters in the immediate area that were formed by the impact of thousands of octahedrites (an iron metallic type) that fell in prehistoric times. Over 1500 meteorites have been recovered from the surrounding area over the years, the largest of which weighed approximately 300 pounds. Odessa Meteor Crater is 550 feet in diameter and the age is estimated to be less than 50,000 years. Odessa Meteor Crater is exposed to the surface, and was originally about 100 feet deep. Due to infilling by soil and debris, the crater is currently 15 feet deep at its lowest point. The site has been designated as a National Natural Landmark by the National Park Service, and a small information area and nature trail has been set up on-site for a self-guided tour.
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Tennessee Crater Site
Flynn Creek Crater, is a meteor crater in north central Tennessee. Flynn Creek Crater is 3.8 mi in diameter and the age is estimated to be 20 million years. The crater is exposed to the surface.
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Wisconsin Crater Site
Glover Bluff Meteor Crater, located about 4 miles south of Coloma, Wisconsin. Glover Bluff Crater is 5 mi in diameter and the age is estimated to be less than 500 million years. The crater is exposed to the surface. The Glover Bluff impact site is among the least studied in the world, in part because for years the uplifted central area has been actively quarried for dolomite beneath the moraine left by retreating glaciers.
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