Had the privilege of attending the 2008 event, At High Tide, held at a farm just off the park at Gettysburg. The day prior to the event officially starting, the 1st Minnesota reenacting group put together a preservation march. We started at the Pennsylvania monument about 360 strong.
We first went into line of battle just to the left of the corpse of trees where the actual 1st Minnesota was during Picketts' charge.
Next we marched in column to to the Wheatfield, back into line of battle and recreated the charge of the 1st Minnesota that occurred July 2. Very weird feeling there. Hair on my arm still stands up recalling it.
Back into column, we marched to the Peach Orchard where we rested and filled canteens. This was the last weekend in June and was extremely hot.
Back into column we marched across the field to the confederate line where we again rested. From there we marched off the park to Sachs Bridge. Oddly, as we approached the bridge the temperature dropped quite a bit and a rain started. At that point we had about 300 of us left, 50-60 dropping out from heat, twisted ankles, etc. So during this rain, all of us huddled inside Sachs bridge. It was unexplainably strange. I chalked it up to being tired, hot, wet, now chilled, but had never heard the haunting stories.
The rain let up after about 45 min and we marched out, in column, through the fields to the event site. That was a ragged bunch at route step until we were about a 1/2 mile from camp. The fifes and drums started playing, all the men snapped to, in step, and was a grand sight that last bit of the March as many other reenactors started to appear from the tree line to watch. Awesome event.
The first two photos on that page are from the event and the first shows us marching off Sachs bridge.