Big Hill is a suburb in the City of Greater Bendigo. It forms part of the Big Hill range to the immediate south of the city of Bendigo. It is the southern part of the rim of forested hills surrounding the Bendigo Valley in which the city of Bendigo is located. The Calder Highway and the Midland Highway, which join to form the main route into Bendigo from Melbourne, pass through a prominent cutting in Big Hill as the southern gateway to Bendigo. The route over Big Hill has marked the main southern entrance to the Bendigo Valley since 1851.