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Welcome to our new website!
Welcome! We hope you find our new website helpful and easier to navigate. It's now as easy to use on your smartphone as your desktop. Take a tour and please tell us what you think.
If your interested in adding information to the Mountainside Peak, please email the Borough Administrator, Glenn Mortimer
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Contact Us
Official Website of Mountainside, New Jersey
1385 US Highway 22 East
Mountainside, NJ 07092
