• Winter sunrise, Kittatinny Ridge

    Delaware Water Gap

    National Recreation Area NJ,PA

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  • Areas closed or newly opened

    Childs Park opens Thursday, May 23. Dingmans Falls, Blue Mt Lakes/Skyline and unpaved Old Mine roads open. STILL CLOSED PA: Mt. Minsi spur trails closed due to falcon nesting; Hornbecks & Adams Trails closed; McDade Trail closed trail miles 24.5 to 27.5 More »

Pages on Natural Features / Ecosystems

 

Most of these features were first published in the park's newsletter, Spanning the Gap, (STG). For related pages in this website, look up the feature by year under:
NEWS: Park Newspaper-Archive of Back Issues of STG, by year

 

Natural Features and Ecosystems
Biological Diversity(STG: Summer 1989 Vol. 11 No. 2) Its importance worldwide.
Features on Non-Native Species

Floods
Major Floods (under Stories)

Geological Formations
How the Gap Formed (general explanation)

Watersheds
Scenic River Protection Continues (STG: Spring 1993 Vol. 15, No. 1) and Scenic River Protection: An Update (STG: Summer 1993 Vol. 15, No. 2) The new water quality standards for the Delaware River, among the nation's highest.
A Drop to Drink (STG: Summer 2001 Vol. 23, No. 2) Delaware River water quality.

Did You Know?

Sketch of a shiny, silvery, oval shaped fish with smallish fins

... that shad have made a comeback in the Delaware River, due to pollution control. This member of the herring family lives its adult life in the ocean, but travels up rivers and streams to spawn. Each spring, anglers follow the "shad run" up the Delaware River to catch these hard-fighting fish. More...