The Geological Survey operates three major field centers in Rolla, Mo., Menlo Park, Calif., and Denver, Colo. During fiscal year 1976, the facilities at each of these centers were expanded. On May 19, 1976, a new center was dedicated at Rolla. The $2 million facility was built on a 2.8-hectare (7-acre) tract and provides a gross area of over 8,825 square meters (95,000 square feet). The new center allows the consolidation under one roof of a number of functions that were previously performed in several separate facilities in the Rolla area. The facility houses about 340 scientists, hydrol-ogists, engineers, cartographers, technicians, and administrative personnel from the Survey's Administrative, Computer Center, Conservation, Topographic, and Water Resources Divisions. The center will also serve as a headquarters for about 110 field employees. Additionally, the General Services Administration maintains a small force at the center, and a Health Unit affords emergency medical treatment and conducts routine health services for all personnel.