The C. Darwin Stolzenbach papers consists of correspondence and memoranda, bound and unbound reports, original and photocopied news clippings, documents related to civil action suits pertaining to highway legislation, excerpts from law review magazines, press releases, copies of speeches, minutes and agendas of meetings, original and photocopied Congressional and other legislation, photographs, and maps.

This collection contains reports, transit studies, meeting agendas, marketing material, maps, memos, tour information, correspondence, photographs and construction drawings related to the Washington Metropolitan Area Transit Authority. The material dates between 1965-1985. This material about WMATA relates specifically to research about other metropolitan transit systems and the early construction of the Metrorail system.