This is the largest cast I have made to date. You can see that it's bottom heavy which is why it needed to be mounted upside down from the natural orientation. The structure is pretty typical of the larger fire ant casts (although all are unique). There are mainly interconnected tunnels near the surface with pad-like chambers as you get deeper. Not much of the surface mound was captured in the cast, so most of what you see is the subsurface portion of the colony.

The cast is displayed upside down from its natural orientation and sits on three round wood risers attached to an oval wood base. The base was is basswood and stained with Watco Danish Oil Dark Walnut with no clear coat, giving it a nice natural look to the finish. There are three 1-1/8" round wood risers which support the cast in its proper orientation. There is no mounting between the cast and the base so the cast can be taken on and off the base for viewing. The bottom of the base has four felt pads to protect the surface it is displayed on. A stainless steel plaque is mounted on the base containing information about it.