MYSTIC
12th Corps Headquarters
Gettysburg, United States
<center>Army of the Potomac<br>12th. Corps Headquarters<br>Major General<br>Henry W. Slocum<br>July 1, 2, 3, 4. 1863<br><br>Were located on Powers Hill<br>280 yards westerly</center>
Gettysburg, United States
<center>Army of the Potomac<br>12th. Corps Headquarters<br>Major General<br>Henry W. Slocum<br>July 1, 2, 3, 4. 1863<br><br>Were located on Powers Hill<br>280 yards westerly</center>