Percival Lowell Milan Observatory. In 1894 Lowell chose Flagstaff, Arizona Territory, as the home of his new observatory. At an altitude of over , with few cloudy nights, and far from city lights, Flagstaff was an excellent site for astronomical observations. This marked the first time an observatory had been deliberately located in a remote, elevated place for optimal seeing. For the next fifteen years he studied Mars extensively, and made intricate drawings of the surface markings as he perceived them. Lowell published his views in three books: "Mars" (1895), "Mars and Its Canals" (1906), and "Mars As the Abode of Life"
Foothill Observatory Foothill Observatory Foothill Observatory is an astronomical observatory owned and operated by Peninsula Astronomical Society and Foothill College. It is located on the college's campus in Los Altos Hills, California (US). The observatory is used by students enrolled in the introductory astronomy lab on campus, which is part of the college's thriving astronomy for non-scientists program, serving over 800 students per year. It is also used for public viewing one evening a week. A new telescope was donated to the observatory and went into operation in 2007. The observatory is generally open to the public without charge every clear Friday