The White Mountain National Forest includes over 100 miles of which marked hiking trail?
Appalachian Trail The Appalachian National Scenic Trail, generally known as the Appalachian Trail or simply the A.T., is a marked hiking trail in the Eastern United States extending between Springer Mountain in Georgia and Mount Katahdin in Maine. The trail is about 2,200 miles (3,500 km) long, though the exact length changes over time as parts are modified or rerouted. The Appalachian Trail Conservancy claims that the Appalachian Trail is the longest hiking-only trail in the world. More than 2 million people are said to do at least one day-hike on the trail each year.
Wildwood Recreation Site The Wildwood Recreation Site is a natural recreation area surrounded by the Mount Hood National Forest in northern Oregon, United States. It encompasses 580 acre of old growth forest and five miles (8 km) of interpretive trail along the Salmon River. It features "Cascade Streamwatch", an underwater viewport into a mountain stream bed and live fish habitat. There is a wetland boardwalk trail, and trail access to the nearby 70 sqmi Salmon-Huckleberry Wilderness, and the Sandy River.