Pemigewasset Wilderness - Location of where Trestle 17 along the East Branch & Lincoln Railroad once crossed the East Branch of Pemigewasset River in Lincoln, New Hampshire USA. The East Branch & Lincoln was a logging railroad that operated from 1893 - 1948. Behind the stone abutments is also the location of where a suspension footbridge once crossed the river along the Wilderness Trail. The footbridge was removed because of safety issues.