If you haven't seen this site before it's worth a look. This is a webcam looking West towards the McPherson's Farm at Gettysburg. The camera is located on Seminary Ridge so you get an idea of the distance between the two ridges. The Chambersburg Pike is on the extreme right of the frame. The white rectangular thing on the right-center horizon is the McPherson's barn and the clump of trees to the left of the barn are the woods where the Iron Brigade fought. There is a traffic light at the top of the rise to the ridge in case you were wondering what that was.
There used to be a MUCH sharper camera located there but someone stole it and it was replaced with one a bit fuzzier. The picture is updated every 15 minutes. It is interesting (at least to me anyway) to see the changing weather conditions and the day light changing over the field.
Click on the title of this post to get to the site.