It is 9.45 km long in southwest–northeast direction, separated from Renaud Island on the southwest by Mraka Sound, and has its northeast coast indented by Misionis Bay.

The island was very roughly charted by the British Graham Land Expedition (BGLE) under Rymill, 1934–37.

More accurately shown on an Argentine government chart of 1957.

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

This Biscoe Islands location article is a stub.