The collection contains primarily architectural drawing reproductions documenting the site history of Columbia University's Geology Library from Schermerhorn Hall on Columbia Unversity's Morningside campus to, later, the Lamont-Doherty Geological Observatory in Palisades, N.Y. The drawings are largely floor plans and some building elevations of both the early and later sites, but the collection also includes a survey map of the Palisades, N.Y. site, and site plans for the Thomas W. Lamont, Esq. Country Residence and Gardens. Also included are 9 student drawings of the Geology and Zoology Library in Schermerhorn Hall by School of Mines student Eugene B. Sieminski, Jr. dated 1958. Architects represented include McKim, Mead, and White, Paver & Wildfoerster, and Olmstead Brothers Landscaper Architects.