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"
Lowell Connector (now FHWA) or the American Association of State Highway Officials (now AASHTO). Further, the "Business I-495" designation was never posted on any signs for the Lowell Connector exit on I-495, US 3, or on any signs on the Connector mainline itself (verified by a comprehensive review of MassDPW signing plans for I-495, US 3, and the Lowell Connector from the late 1950s to the present), although such signs were posted at one time on local streets intersecting the Connector. The signs on Plain Street (Exit 4) lasted into the 2000s, but have since been removed. The Lowell Connector was recently