Like many American railway stations of its time, this one is designed in a picturesque mode. The Neo-Romanesque castle fronts on B Street with rectangular wings flanking a central entrance surmounted by a six-story mansard clock tower. Frank Newall, a Chicago architect, used large, rough-faced blocks of red Manitou sandstone laid in both broken and continuous courses. Bays are defined by round-arched windows, while third-story dormers punctuate the steep-pitched roof.
Inside, cast iron columns are painted and decorated to look like wood. Stained glass Art Nouveau transoms, rich golden oak wain-scoting and parquet ceiling, and hexagonal ceramic tile floors enhance this period piece. The Victorian interior was updated by an Art Deco soda fountain. Now without passenger service, this is the least changed of Colorado's large railway stations.