I noticed this object a while back, and have driven by it numerous times until I finally took a few minutes to pull over and check it out. While the object is historical and educational in nature, it's location in this particular spot is more of a curiousity to me. If you're over on this side of town, it's worth investigating for a moment or two.
To claim a find on this this virtual cache, please submit a picture of your GPSr with the item on TOP of the object.