2813 Jerusalem Road, Kingsville, (410) 592-2897, dnr.state.md.us
From its Hereford Area adjacent to Prettyboy Reservoir to its Hammerman Area at the mouth of the Gunpowder River, the Gunpowder Falls State Park's more-than-18,000 acres and 120 miles of trails-including the 21-mile Torrey C. Brown rail-trail extending up to the Pennsylvania border-cover a massive part of central Maryland. Fly-fishing devotees and tubers flock to it, thanks to the frigid, clean water coming from the bottom-release dam at Prettyboy, while history buffs and wildflower and bird enthusiasts can find plenty of quarry for their interests. The more active set-mountain bikers, horseback riders, cross-country skiers, and paddlers-can ride, glide, and gunkhole to their hearts' content. From tide marshes to steep, rocky terrain, this giant park offers more to do outdoors than any other place near Mobtown.