Caltech Submillimeter Observatory, Observatory in Hawaii
The Caltech Submillimeter Observatory was a scientific facility for astronomical observations.
Operated by the California Institute of Technology, it was established in the mid-1980s.
It played a significant role in submillimeter astronomy research.
Located atop Mauna Kea, it sat at nearly 14,000 feet above sea level.
The observatory was decommissioned and disassembled in 2015.
Sources: Wikimedia, OpenStreetMap