This collection consists of approximately 300 architectural drawings. Most of the drawings are of proposed and approved hotels and residences for Yellowstone National Park, circa 1890-1830. About 80% of these drawings and blueprints are by architect, Robert C. Reamer. Drawings depict from building elevations to plans for windows and doors inside the buildings.

Modernist Architects Working in Montana Oral History Project (2011) Five oral histories sponsored by SHPO interviewing Montana-based architects discussing their years working in the field in the state. All interviews were conducted by Suzanne Julin. The five interviews provided by Willard Johnson, Paul Schofield, Joe Campeau, Martin Crennan, and Leonard Sundell.