Observatories I recently visited Maui and had the opportunity to visit the Haleakala observatories. This prompted me to recall all of the observatories I have visited:

Etscorn Observatory - New Mexico Tech Campus
Apache Point Observatory - Apache Point
- Astrophysical Research Consortium
- Sloan Digital Sky Survey
- New Mexico State University
National Solar Observatory - Sacramento Peak
- Richard B. Dunn Solar Telescope
- John W. Evans Solar Facility
- Hilltop Dome
Very Large Array NRAO - San Agustin
Haleakala Observatories - Maui
- Mees Solar Observatory
- Faulkes Telescope
- MAGNUM Telescope