As advocates of the environment and members of Scenic Hudson, Inc., founded in 1963, Senator and Mrs. Seymour dedicated their time and efforts to the preservation of Storm King Mountain, directly confronting the Consolidated Edison Company’s proposed pumped storage facility at Storm King Mountain, near Cornwall, New York. The records consist of correspondence, clippings, legal documents, agenda and minutes of meetings, memoranda, studies, reports, publicity materials, printed matter, and maps.