The range is 16 nautical miles (30 km; 18 mi) long and forms the western wall of the upper part of the Dennistoun Glacier.

It was named by the United States Advisory Committee on Antarctic Names (US-ACAN) after the port of Lyttelton, New Zealand, where over the years, many expedition ships refueled and replenished supplies en route to Antarctica; also in recognition of the friendship and cooperation of its citizens with American participation in the U.S. Antarctic Research Program.

A peak 2,120 metres (6,960 ft) high in the north part of Lyttelton Range, 6 nautical miles (11 km; 6.9 mi) east-northeast of Mount Bierle.

Named by US-ACAN for Cliff Wetmore, United States Antarctic Research Program (USARP) biologist at Hallett Station, 1963-64.

[6] This article incorporates public domain material from websites or documents of the United States Geological Survey.