This strenuous 11.3-mile loop offers a bit of everything--rugged summits, challenging trails, dense woodlands, mountain streams, remote campsites, and heaps of solitude.

Hike, bike, or snowshoe this 3.1-mile loop to pioneer ruins and a relaxing waterfall in Patapsco State Park, a short drive from downtown.

This 5.6-mile loop climbs the woody spine of Dick's Ridge, then meanders along a twisting mountain stream in a hilly section of Chattahoochee National Forest.

This beautiful 4.3-mile loop adjacent to the Illinois River adds welcome relief--waterfalls, sculpted sandstone canyons, and impressive overlooks--to the usually pancake-flat landscape.

Explore seasonal waterfalls, mellow woods, and a large quarry on this moderate 4.5-mile loop along the relatively steep flanks of Monte Sano Mountain.

This 5-mile loop winds through an undisturbed swath of parkland to babbling creeks and fine views across the San Fernando Valley to the San Gabriel Mountains.

Only 8 miles from downtown, this diverse 3.4-mile loop curves gently around a pair of crystal-clear lakes (bring binocs to watch waterfowl) to an old trading post.

Explore canal relics and tucked-away overlooks of the Mason-Dixon Trail on this 3.6-mile dayhike in Holtwood Environmental Preserve.

This 8.8-mile, out-and-back wooded hike runs the spine of the Appalachian Mountains to one of the most remote AT shelters in Pennsylvania.

Pass 21 waterfalls on this 6.2-mile, five-star loop through a wrinkled ravine and tranquil forest in Ricketts Glen State Park.