The Stephens Observatory is located atop the Carnegie Science Building at Bates College in Lewiston, Maine. It houses a 12 in (30 cm) Newtonian reflecting telescope, built by Roscoe G. Stephens of Kennebunk, Maine, and donated to the College in 1929. It is used mainly as a teaching facility for upper-level astronomy classes. The observatory has a modern tracking system and electronic drive mechanism.