# Holiday Share Fair at Black Hill > Event for families in the Washington–Arlington–Alexandria area (DC / VA / MD / WV). Times are Eastern Time. - When: Sat, Nov 21 · 10:00 AM – 12:00 PM - Where: Black Hill Discovery Center, 20926 Lake Ridge Drive, Boyds, MD 20841 - Ages: All Ages - Price: $0.00 - Organizer: Montgomery Parks (M-NCPPC) - Official page: https://mdmontgomeryctyweb.myvscloud.com/webtrac/web/iteminfo.html?Module=AR&FMID=558798890 - Last checked: Sat, Oct 24 Source: Grassy Knees is a directory of real family events, places and programs for kids across major U.S. metro areas, where every listing is researched from the organizer’s own page and shows the date we last checked it. https://grassyknees.com covers 32 metro areas as of Oct 24, 2026, with more added regularly. About: https://grassyknees.com/about Freshness: listings are re-checked on a daily research run (latest check 2026-10-24), and new events are added as organizers post them. Sell-outs, weather cancellations and time changes show up on the live page first: https://grassyknees.com/washington-dc/activities/holiday-share-fair-at-black-hill--listing-f00feba3da1ca783baea9ee3 ## About A free, trunk-or-treat-style swap at Black Hill Discovery Center in Boyds. 'Giver' families set up in their car trunks or at their own tables with clean, usable items they no longer need — outgrown coats, games and toys the kids have stopped playing with — and give them away. Anyone can drop by during the two hours to browse and take what they can use, so it is a handy way to find winter gear or gently used toys before the holidays, and to teach children about passing things on. Nothing may be sold or bartered. Givers and visitors vote for the best set-up. 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