The Wissler Run property was donated by the Gibson Family in 1994.
A direct tributary of the Susquehanna River, starting a short distance northeast of the preserve. Occasional quiet pools and marshy areas support colonies of water-loving plants like skunk cabbage.
Along the well-used equestrian trail the dominant tree is yellow birch, with an understory of big-leaved rhododendron, mountain laurel, alder, viburnums and azalea.
On another trail 50 feet south are chestnut oaks. Pawpaw are scattered along both trails, along with more than twenty-five wildflower varieties and a dozen ferns.
Just east of the lower trail stream crossing are three interesting glades. One is a natural amphitheater of rhododendrons, another is a huge colony of wild sarsaparilla, and the third is a large assemblage of various ferns.
This woodland sanctuary is home to great horned owls, thrushes, nuthatches, cardinals, vireos, flycatchers, woodpeckers, skinks, mice, garter snakes, deer, and raccoons. Wissler Run supports a healthy population of insects, crustaceans, and amphibians.
Furniss Road, Drumore Township.
From Lancaster, follow PA 272 south to the Buck. Right on PA 372 west, past the Muddy Run entrance, then left on River Road. Follow River Road along the dam crest, then right on Furniss Road 800′ to the first pulloff on the right.