This was during the first occupation of Jacksonville in 1862?
Interesting stuff. I do wish that there was some sort of tag on the photo so we knew what we were looking at.
Another interesting civil war site in jax is Yellow Bluff. It was held for a time by the famous Mass 54th.
Another thing I would be interested to find out, are there any remnants of the fortifications that the ACoE started to build around the city in 1864ish?