Prince Charles Mountains
Mount Tarr () is a mountain 1.5 miles (2.4 km) east-southeast of Mount Creighton in the Porthos Range, Prince Charles Mountains. Plotted from ANARE (Australian National Antarctic Research Expeditions) air photos of 1965. Named by Antarctic Names Committee of Australia (ANCA) for F. Tarr, aircraft engineer with the ANARE Prince Charles Mountains survey party in 1969.