Black Brook Bridge, Wilderness Trail - Built in the late 20th-century, this steel beam footbridge was located along the Wilderness Trail, just beyond the former junction of the Wilderness Trail and the Bondcliff Trail, in New Hampshire’s 45,000-acre federally designated Pemigewasset Wilderness. It crossed Black Brook (also called Bear Brook) just above the East Branch & Lincoln Railroad’s legendary trestle No. 16; built in the early 1900s, this trestle collapsed in 2018. The steel beam bridge offered an excellent view ...