Lagrange Island is a small rocky island 0.7 kilometres (0.4 nmi) northeast of Newton Island and 3 kilometres (1.5 nmi) north of Cape Mousse, Adélie Coast, Antarctica.

[1] This article incorporates public domain material from "Lagrange Island".

Geographic Names Information System.

United States Geological Survey.

This Adélie Land location article is a stub.