Gilsum Rock Swap & Mineral Show 2026
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The Gilsum Rock Swap & Mineral Show is a long-running free community event held each June in Gilsum, New Hampshire. Dealers and collectors set up tables of gems, minerals, fossils, jewelry, and lapidary equipment on the grounds of the Gilsum STEAM Academy and Community Center, alongside food vendors and family activities. Admission is free; donations are accepted.
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