Large Sky Area Multi-Object Fiber Spectroscopic Telescope - Information, news, events and technical reports, documents, gallery, and links. Mount Laguna Observatory - Facilities, equipment and instrumentation information, virtual tour, site map, CCD camera laboratory and production, and resources. Steward Observatory - Equipment information, projects, calendar, talks, news, and links. Sloan Digital Sky Survey - A dedicated 2.5 meter telescope which uses sensitive electronic light detectors to systematically map a quarter of the sky, building a catalog of celestial objects, galaxies, and quasars. Data links, questions and answers, image gallery, project tour, news, archive, publications, and links. Apache Point Observatory - Consists of 3.5 meter, 2.5 meter, and 1.0 meter with projects, schedules, observing aids, and information for each. Mount Wilson Observatory - Projects, outreach and education, history, FAQ, news, and links. InfraRed Telescope Facility - General information, observing information, instrumentation, facility systems, photo gallery, news, and links. Cambridge Optical Aperture Synthesis Telescope - A multi-element optical interferometer with baselines of up to 100 meters, designed to observe stars with angular resolution as high as one thousandth of one arcsecond. Lowell Observatory - Research, education and outreach, mission, star tales, and links. Tenagra Observatories - Operations, commercial time, facilities and equipment information, sites, discoveries, articles, and links. The Advanced Satellite for Cosmology and Astrophysics - Mission characteristics, science highlight, and archive. Spitzer Space Telescope - General information, articles, downloads, equipment information, news, and links. Berkeley Automated Imaging Telescopes - Information for the Leuschner Berkeley and the Katzman automatic imaging equipment. Kitt Peak National Observatory - General information, image gallery, facility schedule, documentation, observation information, documentation, and electronic forms and tools. National Optical Astronomy Observatory - Information, news, resources, outreach programs, gallery, observing information, software, and newsletter and reports. Stratospheric Observatory for Infrared Astronomy - News and updates, education and public outreach, research information, and galleries. Visible and Infrared Survey Telescope for Astronomy - Consortium, science committee, project office, and downloads. Carnegie Observatories - Information for observers, calendar, publications and libraries, seminars and conferences, fellowship program, and links. University of Wyoming Infrared Observatory - The WIRO 2.3-meter telescope is located near the summit of Jelm Mt. Includes information on its optical design, structure, the dome enclosure and observing.