Public Info

Union County Invites Residents to Explore the World of Minerals, Gems and Jewelry at Trailside Nature and Science Center

The Union County Board of County Commissioners would like to invite Union County residents and visitors to explore the fascinating world of rocks, minerals, fossils, gems and jewelry at the Trailside Nature and Science Center in Mountainside on Saturday, November 4 and Sunday, November 5 from 10:00 a.m. to 4:00 p.m. on both days.  Admission to the event is free.

“The show is a unique opportunity for Union County residents and visitors of all ages to learn about the world of rocks and gems,” said Commissioner Chairman Sergio Granados.

Trailside is part of the Union County Department of Parks and Recreation. It is located at 452 New Providence Road in Mountainside, in Union County’s Watchung Reservation. Ample free parking is available on the site.

A wide variety of specimens will be on display along with many items for sale, from child-friendly geodes, arrowheads and fluorescent minerals to jewelry, fine gems and collector-grade pieces.

Sponsored jointly with the New Jersey Mineralogical Society and the New Jersey Lapidary Society, the Mineral, Gem and Jewelry Show will host over 15 vendors offering minerals, rocks, gemstones, jewelry, sea shells and fossils from around the world.

Trailside is open regularly on Tuesdays through Sundays except holidays, from 10:00 a.m. to 4:00 p.m. Admission is free of charge. A modest fee applies to scheduled programs. For more information about all programs offered this fall at Trailside, call 908-789-3670 or visit

Quick links to all programs and activities in Union County parks are available at