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Columbus is considered to have relatively flat topography thanks to a large glacier that covered most of Ohio during the Wisconsin Ice Age. However, there are sizable differences in elevation through the area, with the high point of Franklin County being 1132 ft (345 m) above sea level near New Albany, and the low point being 670 ft (207 m ...
Kingman Reef high point – less than 7 feet (2 m) [92] Midway Atoll, Sand Island high point – 50 feet (15 m) [92] – The highest point of the U.S. minor outlying islands in the Pacific Ocean. Navassa Island high point – 280 feet (85 m) [91] – The highest point of all the U.S. minor outlying islands.
Hoover Dam, in Blendon Township, near Westerville, Ohio, dams the Big Walnut Creek to form the Hoover Memorial Reservoir. This reservoir is a major water source for the city of Columbus, Ohio. It holds 20.8 billion US gallons (79,000,000 m 3) of water and has a surface area of 3,272 acres (13.24 km 2), or about five square miles. Construction ...
Lake Erie (42.2° N, 81.2W) has a mean elevation of 571 feet (174 m) [ 8] above sea level. It has a surface area of 9,990 square miles (25,874 km 2) [ 7] with a length of 241 statute miles (388 km; 209 nmi) [ 7] and breadth of 57 statute miles (92 km; 50 nmi) [ 7] at its widest points. It is the shallowest of the Great Lakes with an average ...
Western Interior Seaway. The Western Interior Seaway (also called the Cretaceous Seaway, the Niobraran Sea, the North American Inland Sea, and the Western Interior Sea) was a large inland sea that split the continent of North America into two landmasses for 34 million years. The ancient sea, which existed from the early Late Cretaceous (100 Ma ...
Ohio's State Invertebrate Fossil, is a trilobite found in the formation. The Southern Hemisphere where Ohio was located at the end of the Ordovician experienced a widespread glaciation, around 438 million years ago. Sea level dropped due to the glaciation, accompanied by a subsidence of the land.
SeaWorld Ohio was a theme park and marine zoological park located in Aurora, Ohio. It was owned and operated by Busch Entertainment Corporation. The Ohio location was the second SeaWorld park to be built in the chain, following SeaWorld San Diego, which opened six years earlier. The park was developed by George Millay, founder of the SeaWorld ...
Campbell Hill is, at 1,549.09 feet (472.16 m), the highest point in elevation in the U.S. state of Ohio. Campbell Hill is located within the city of Bellefontaine, 2 miles (3.2 km) northeast of downtown.