Delaware Water Gap

August 28, 2001


Provided by: Jim Foster, NASA/GSFC
Summary authors & editors: Jim Foster

The above photo was taken a few weeks ago and shows the Delaware River in northeastern PA - the Delaware River is the border between PA and NJ. Millions of years ago this area was part of a level plain, but a combination of erosion and gradual uplifting formed the ridges and valleys that are features of today's landscape. Near the area shown on the photo, the Delaware river twists in a tight "S" curve through Kittatinny Ridge, formimg a picturesque gap. Whereas water gaps occur when ridges are cut by narrow stream valleys, wind gaps represent river cuts abandoned during the course of uplift and erosion - they're often found near the top of a ridge.

In the late 19th century and early 20th century, a number of resorts, such as Shawnee on the Delaware, were built to take advantage of the area's scenic geology. Tubing and canoeing are popular pastimes on warm summer days.

Related Links: