Berwick Tunnel showing lead lining by snctadmin · Published July 3, 2019 · Updated July 3, 2019 Lead Lining across roof and walls, covered with calcite deposits. NW ca 600 yards from S entrance.
NW Waterway Recovery Group Weekend 6-8 March March 8, 2020 by Brian Nelson · Published March 8, 2020 · Last modified March 13, 2020