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Why are some places around Greenfield Lake so hilly, for a coastal area?

Ben Steelman
StarNews

John Huntsman, associate professor of geology at the University of North Carolina Wilmington, thinks that area might be what geologists call a “terrace deposit” — remains of a former beach. 

 In other words, those hills or ridges might mark where sea level was, back a few thousand to 60,000 years ago, when the Atlantic Ocean covered more of eastern North Carolina than it does today.

As hills go, of course, the area around Greenfield Lake isn’t very high. Topographical maps show the highest elevation in that area is only about 23 feet (7 meters). According to surveys done by N.C. State University in Raleigh, the highest point in New Hanover County is only about 75 feet above sea level.

User-contributed question by:
Michael Bloom

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2 Responses to “ Why are some places around Greenfield Lake so hilly, for a coastal area?”

  1. On November 11, 2010 at 11:53 am chaz wrote:

    Well that begs the question; “what is the highest point in New Hanover County and/or Wilmington?”

  2. On November 11, 2010 at 4:01 pm Jim Ware wrote:

    Chaz,
    There’s a link within the answer. Click on the highlighted text “highest point in New Hanover County” to see details about highest points in the county, Wilmington and nearby communities.
    Jim Ware
    Online products manager
    StarNews Media



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