Rail transport in South Georgia and the South Sandwich Islands

[2]: 134–135 Railway use began to decline in South Georgia when tractor imports became common in the 1950s.

[2]: 147  The switch from coal to oil as the fuel running the machinery and generators at the stations may also have been significant.

[1] A survey station in Southern Thule may transport equipment using the round cross-section rails as used for tracking shots in cinematography.

Southern Thule is a long way south at 59°25′S, but even if its track is counted as a proper light railway, it is not the most southerly ever built.

That record is held by the Dumont d'Urville Station in Antarctica at 66°40'S where a narrow gauge track is used to unload material at the jetty.