United States -- Surveys
Subject
Subject Source: Library of Congress Subject Headings
Found in 1 Collection or Record:
British North American Boundary Commission photographs
Collection
Identifier: Org. Lot 556
Abstract
This collection consists of photographic copy negatives and copy prints taken by the British North American Boundary Commission along the 49th parallel during two separate survey periods, from 1860-1861 and from 1872-1875.
Dates:
1860-1875