| Credit: | unknown photographer |
|---|---|
| Date: | 1861-1865 |
| Negative Size: | stereo |
| Locations & Lines: | Baltimore & Ohio Railroad (B&O); Chesapeake & Ohio Canal; Loudoun Heights VA; Maryland; Potomac River; Virginia |
| Structures & Establishments: | B&O Bridge (b) (Harpers Ferry WV) |
| Transports: | barge |
| Sources: | USAMHI – MOLLUS collection |
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