The cleared summit area provides expansive views of the surrounding hills, and includes small pavilions and a large bungalow-style structure.

The loft areas on the upper level surrounding the main room were probably intended as sleeping space.

The building, a significant example of local summer estate architecture, is listed on the National Register of Historic Places.

He called his estate "Tamarac," and in 1908 retained architect Alfredo S.G. Taylor to design the bungalow at the summit of Dennis Hill.

Here he hosted numerous luminaries of the day, including steel magnate Andrew Carnegie, President William Howard Taft, and conductor Walter Damrosch.