Elmira Prison
Elmira Prison was originally a barracks for "Camp Rathbun" or "Camp Chemung", a key muster and training point for the Union Army during the American Civil War, between 1861 and 1864. The 30-acre (120,000 m2) site was selected partially due to its proximity to the Erie Railroad and the Northern Central Railway, which crisscrossed in the midst of the city.