I, too, am a huge Civil War buff and have been to Gettysburg a few times. From personal experience, you describe the ambience of the location well. I have to agree that the field of Picket's Charge would not be a place to be after dark - I would add Devil's Den to that as well. Having been on several paranormal tours there, your statement that it is the most haunted is apt and well earned by the entire town since there is not a pot where untimely death did not meet Pennsylvania earth. Well done and thank you very much for sharing it.
This meets the contest requirements beautifully as you deliver a structurally sound Loop Poem. I don't care for this style much as it usually comes across as hokey, but you have elevated it with wonderfully vivid imagery and gracefully flowing meter. Good luck in the judging and thank you very much for sharing it.