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Delaware Water Gap National Recreation AreaHemlock overstory at Raymondskill Ravine PA...
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Delaware Water Gap National Recreation Area
Park Bulletins on Nature & Science
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How the Gap Formed
What IS a "water gap"?
Theories of its origins; other gaps in the area. (2 pages)

 
Grayish outcrop of quartzite rock

Mt. Tammany Geology Stops
(for use of those versed in geology)
Includes map of Red Dot/Blue Blazed Trails (1 page)

 
sketch of an eagle

Eagles at the Gap
Why they come here; where to go to look for them (1 page)

 
 
asian longhorned beetle
Firewood pests
Reasons for the quarantine on firewood from outside the park:
asian longhorned beetle and emerald ash-borer (1 page)
View of the sky through hemlock treetops  

Did You Know?
... that hemlock groves in Delaware Water Gap National Recreation Area are threatened by a non-native insect, the hemlock woolly adelgid. Hemlocks provide shade for spectacular rhodondenron, for trout streams, and for native wildflowers. As hemlocks weaken and die, they are cut down for your safety.
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Last Updated: June 20, 2008 at 11:30 EST