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Lake Hiawatha, New Jersey facts for kids

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Lake Hiawatha, New Jersey
Unincorporated community
Country  United States
State  New Jersey
County Morris
Township Parsippany-Troy Hills
Elevation 253 ft (77 m)
ZIP code 07034
GNIS feature ID 0877634

Lake Hiawatha is an unincorporated community located within Parsippany-Troy Hills in Morris County, New Jersey, United States. The area is served as United States Postal Service as ZIP code 07034. As of the 2010 United States Census, the population for ZIP Code Tabulation Area 07034 was 9,360.


The area was created when a chain of volcanic islands collided with the North American plate. The islands went over the North American plate and created the highlands of New Jersey. Then around 450 million years ago, a small continent collided with proto North America and created folding and faulting in western New Jersey and the southern Appalachians. When the African plate separated from North America, this created an aborted rift system or half-graben. The land lowered between the Ramapo fault in western Parsippany and the fault that was west of Paterson. The Wisconsin Glacier covered area from 21,000 to 13,000 BC. When the glacier melted due to climate change, Lake Passaic was formed, covering all of what is now Lake Hiawatha. Lake Passaic slowly drained and much of the area is swamps or low-lying meadows such as Troy Meadows. The Rockaway River flows over the Ramapo fault in Boonton and then flows along the northwestern edge of Lake Hiawatha. In this area, there are swamps near the river or in the area.

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