It is a Howe truss made of locally cut yellow poplar. It has "deeply scrolled" bargeboards which were cut from large planks of yellow poplar. Oak, maple, yellow poplar, and rhododendron also predominate. The walls are built of hewn yellow poplar logs resting on a stone foundation. Examples are the tulip tree (a yellow poplar) and the American beech. The Mountain is primarily forested with upland oak, yellow poplar, red oak, and hickory. They are made of yellow poplar encased in plaster and painted to resemble marble. Its wood is sold as "yellow poplar" along with that of the tuliptree, "Liriodendron tulipifera".