Mount Hopkins (Arizona)

Mount Hopkins is a peak in southern Arizona with a summit elevation of about 8,553 feet (approximately 2,606 metres) and is notable as the site of a major astronomical research complex. The mountain provides high, dry observing conditions that attracted the placement of professional telescopes.

The upper slopes host the Fred Lawrence Whipple Observatory and associated telescopes, which are used for optical and near-infrared research. The mountain also has forested trails and service roads used for both access to facilities and recreational hiking where permitted.

The summit and observatory area have been used for astronomical research since the mid-20th century, when institutions selected the site for its favorable observing conditions. Over time the site expanded to host multiple instruments and research programs.

Geographically Mount Hopkins lies in southern Arizona within national forest lands and is located southeast of Tucson, within driving distance of the city and its transport links.

• Astronomical quality: The summit sits above 8,500 feet, offering darker skies and reduced atmospheric disturbance that support optical astronomy at the site.
• Public access: Many of the telescope facilities are research sites with limited public access; visits are usually restricted to scheduled public events or organised tours.

What to See #

• Fred Lawrence Whipple Observatory: Fred Lawrence Whipple Observatory - a research complex on the mountain that hosts several optical telescopes and instruments used for professional astronomy.