High Altitude Observatory of Harvard University and University of Colorado.

Founded as a Harvard University observation station in Climax, Colorado in 1940. Incorporated under the laws of Colorado in 1946, in 1951 it became a separate institution, with trustees appointed by Harvard and the University of Colorado. About 1954, Harvard's official connections with the station were dissolved.

From the description of Records of the High Altitude Observatory, 1941-1953 (inclusive). (Harvard University). WorldCat record id: 76972595