Maryland KOA Campgrounds
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KOA Campground Millersville
768 Cecil Avenue North - PO Box 9, Millersville MD 21108, 
410-923-2771
$$$$$, Mar 1-Nov 15, 156 sites, Tents Only sites: 32, 70 ft max RV length, 69 pull thrus, 68 full hookups, 56 elec-water hookups, 20/30/50 amp, tables, cfg, dump station, Clubs Welcome, RV Storage, propane, laundry, firewood, internet, pet friendly extra rules, pool, playground,
KOA Campground Williamsport
11759 Snug Harbor Lane, Williamsport MD 21795, 301-223-7571
$$$$$, Mar 23-Nov 30, 96 sites, Tents Only sites: 10, 60 ft max RV length, Accepts Big Rigs, 20 pull thrus, 48 full hookups, 48 elec-water hookups, 20/30/50 amp, tables, cfg, dump station, Clubs Welcome, RV Storage, propane, laundry, firewood, internet, pet friendly, pool, playground,
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