Mountainside Searching for something to do in Mountainside? Find upcoming events, restaraunts to dine at, stores to shop in or services nearest you. Help support the local communities of Union County. Places Attractions 2 Libraries 1 Parks 2 Public Facilities 5 No Records FoundSorry, no records were found. Please adjust your search criteria and try again. Google Map Not LoadedSorry, unable to load Google Maps API. AttractionsGovernment OfficesLibrariesParksPublic Facilities Places Announcements Events Public Facilities Echo Lake Park Park Dr Mountainside , New Jersey 07092 United States County Park, Dog Park, Fishing, Fitness Trail, Ice Skating, Multi-use Path, Pedal Boats, Picnic Area, Playground, Restrooms, Soccer, and Softball Mountainside Public Library 1 Constitution Plaza Mountainside , New Jersey 07092 United States Public Library : 9:30 am - 5:00 pmMon10:00 am - 9:00 pmTue9:30 am - 9:00 pmWed9:30 am - 5:00 pmThu9:30 am - 9:00 pmFri9:30 am - 5:00 pmSat9:30 am - 5:00 pmSunClosed Mountainside Recreation Department 1385 US-22 Mountainside , New Jersey 07092 United States Soccer, Softball, and Tennis Trailside Nature and Science Center 452 New Providence Rd Mountainside , New Jersey 07092 United States Nature and Wildlife : 12:00 pm - 5:00 pmMon12:00 pm - 5:00 pmTue12:00 pm - 5:00 pmWed12:00 pm - 5:00 pmThu12:00 pm - 5:00 pmFri12:00 pm - 5:00 pmSat12:00 pm - 5:00 pmSun12:00 pm - 5:00 pm Watchung Reservation Historic Trail Mountainside , New Jersey 07092 United States Bridle Trail, Canoeing, County Park, Fishing, Kayaking, Multi-use Path, Nature Trail, Picnic Area, Playground, Restrooms, and Wi-Fi View all
