National Optical Astronomy Observatories (NOAO)

SARA Observatory at Kitt Peak

The link to get them all: AstroWeb, especially its lists on Optical Astronomy and Telescopes.

See also my Big Page of Links. There are over 1000, so to use effectively, use your web browser's "Find" function (e.g., to find the word "Observatory")

Ground-based observatories at which I've gotten time:

Canada-France-Hawaii Telescope, Mauna Kea, Hawaii

Cerro Tololo Interamerican Observatory, Chile

Kitt Peak National Observatory, Arizona, including the WIYN Observatory

McDonald Observatory, including the 9.2-m Hobby-Eberly Telescope, Texas

Michigan-Dartmouth-MIT Observatory, Kitt Peak, Arizona

Mount Stromlo Observatory, Australian National University

Observatoire du Pic du Midi, France

Southeast Association for Research in Astronomy (SARA) Observatory,