Tower Hill is a maar volcano of regional significance in Western Victoria. The excellent preservation of its geomorphic features suggests a young (late Quaternary) age. Early work by Gill and others seemed to confirm this with estimates of age between 6500 and 8700 BP. Subsequently studies of crater lake sediment cores by DíCosta and others from Monash University, gave an age exceeding 23,000 BP. We report here two new estimates of the age for this volcano. Radiocarbon dating of plant material preserved in the floor of a Tower Hill tuff quarry and thermo-luminescence dating of quartz in sediments preserved on a coastal headland and buried by the tuff give concordant age estimates. The agreement of these two dating techniques gives confidence in the assigned age of 32,950 ± 650 BP based on radiocarbon. This age dates the start of the eruption and a technique to determine the end of the eruptive phase will be discussed.