The Tinker Glacier is 25 miles long glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

, draining the central part of the Southern Cross Mountains

Southern Cross Mountains

Southern Cross Mountains is the name applied to the group of mountain ranges lying between the Mariner and Priestley Glaciers in Victoria Land. Seaward parts of this area were first viewed by Ross in 1841 and subsequently by expeditions led by Borchgrevink, Scott, Shackleton and Byrd. The precise...

 and flowing SE into Wood Bay

Wood Bay

Wood Bay is a large bay which is bounded by Cape Johnson and Aviator Glacier Tongue on the north and Cape Washington on the south, along the coast of Victoria Land. Discovered in 1841 by Captain James Clark Ross, Royal Navy , and named by him for Lieutenant James F.L. Wood of the ship Erebus....

, on the coast of Victoria Land

Victoria Land

Victoria Land is a region of Antarctica bounded on the east by the Ross Ice Shelf and the Ross Sea and on the west by Oates Land and Wilkes Land. It was discovered by Captain James Clark Ross in January 1841 and named after the UK's Queen Victoria...

. Named by the Northern Party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1962–63, for Lieutenant Col. Ron Tinker, leader at Scott Base

Scott Base

Scott Base is a research facility located in Antarctica and is operated by New Zealand. It was named after Captain Robert Falcon Scott, Royal Navy, leader of two British expeditions to the Ross Sea area of Antarctica...

 during that season.

The Tinker Glacier Tongue is the seaward extension of the Tinker Glacier, projecting into the NW corner of Wood Bay on the coast of Victoria Land. The name was suggested by Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

(US-ACAN) in association with the Tinker Glacier.