Visitors can access the Woods Trail from the Wildlife Drive (the first right after the photo blind). The Woods Trail, with 1/4, 1/2, and 1 mile loops, offers visitors an opportunity to see the formerly endangered Delmarva Peninsula fox squirrel. Blackwater Refuge is home to the largest remaining natural population of these squirrels in the country. The Woods Trail is an area that is managed to provide habitat for the endangered squirrel, which prefers a mature forest with little undergrowth. In spring, these wet woods are alive with the calls of mating tree frogs and toads, as well as numerous songbirds. The Woods Trail also features the mangled remains of a Peerless steam boiler, which exploded violently while it was powering a portable sawmill in the 1920s. The wreckage serves as a reminder of the past uses of the land at the refuge.