Off on a rabbit trail, in the picture of the ammunition train that hill in the background is Coles Hill. Thats just outside Stephensburg, VA. to the south of Brandy Station. It was used by the Union army as a look out station and, as you can see from the picture, a camp. From there you can see both Culpeper and Brandy Station.
Many, many very nice relics came from that area at DIV. Here are a couple of shots from the top.