Integrated slideshows are now available.
If you check out the Indiana Army Ammunition Plant page and go to Indiana Ordnance Works Plant 1, there is a link at the top of the page to the first slide show. Or just follow this link. It is a collection of aerial shots of the area. One of them has been annotated with the functions of building groups added.
There is a separate aerial slideshow for the HOP.
More to follow, both aerials of the other areas and photos from the ground.