What an amazing photograph from the 1860s. This shows the entrance to the Washington Water Works near Great Falls.
![Entrance to Washington Water Works, Great Falls, Potomac River - Photograph shows two men standing in a small flat boat near the spillway.](https://ghostsofdc.org/wp-content/uploads/sites/7/2013/07/08256u.jpg)
Source: Library of Congress
What an amazing photograph from the 1860s. This shows the entrance to the Washington Water Works near Great Falls.
Source: Library of Congress