Roger Putnam which was under-utilized due to poor viewing conditions and low elevation. Putnam led the negotiations which permanently moved the telescope to Lowell Observatory's Anderson Mesa site (in Arizona). The telescope was operated by Lowell Observatory in partnership with the Ohio State University and Ohio Wesleyan, and purchased by Lowell in 1998. Putnam brought Perkins's telescope to the Arizona observatory as well. The Observatory's existing telescope had cracked in 1964 while staff attempted to update its optical system. The Perkins mirror did not stay at Lowell for long, returning to Perkins' control in 1969. The Lowell Observatory retained the mount, however.
United States Naval Observatory Flagstaff Station complex. Attached to its large "hut" is the building housing NOFS' electronics and electrical engineering laboratories and clean rooms, where most of the advanced camera electronics, cryogenics and telescope control drives are developed and made. NOFS operates the Navy Precision Optical Interferometer (NPOI) in collaboration with Lowell Observatory and the Naval Research Laboratory at Anderson Mesa, south-east of Flagstaff. NOFS (the operational astrometric arm of USNO) funds all principle operations, and from this contracts Lowell Observatory to maintain the Anderson Mesa facility and make the observations necessary for NOFS to conduct the primary astrometric science. The Naval Research Laboratory (NRL)