The original 1893 building was destroyed by arson in 1903. The 1905 structure, still standing, was designed by noted architect Cass Gilbert.

Download an excellent illustrated history (pdf format) of the design and building of the second Montana Club, from the Drumlummon Institute's "Drumlummon Views" online magazine:
“‘Unique and Handsome’: Cass Gilbert’s Designs for the Montana Club,”
by Patty Dean

The law firm of Luxan & Murfitt, with offices in the Montana Club Building, have put together a fascinating slideshow featuring old interior photos of the Club, along with a selection of interesting Montana Club history links.

The Montana Club is still operating.