Public domain
Catskill Aqueduct construction: Result of the blast of the great siphon tunnel under the Hudson - 2 people in tunnel, Jan. 1912
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineCatskill Aqueduct construction: Result of the blast of the great siphon tunnel under the Hudson - 2 people in tunnel, Jan. 1912. 1912-01-01. George Grantham Bain Collection, Library of Congress. Public domain.
