Mapped by Falkland Islands Dependencies Survey (FIDS) from surveys and air photos, 1956-59.

Mapped in 1960 from surveys by Falkland Islands Dependencies Survey (FIDS).

Charted by Falkland Islands Dependencies Survey (FIDS) in 1948.

Surveyed by Falkland Islands Dependencies Survey (FIDS) in 1956 and so named because of its snout-like appearance.

Surveyed by Falkland Islands Dependencies Survey (FIDS) first in 1945, then again in 1953.

Surveyed by Falkland Islands Dependencies Survey (FIDS) in 1949.

Surveyed by Falkland Islands Dependencies Survey (FIDS) in November 1960.

Surveyed by Falkland Islands Dependencies Survey (FIDS) in August 1953.

Surveyed by Falkland Islands Dependencies Survey (FIDS) in 1947 and 1955.

Mapped from surveys by Falkland Islands Dependencies Survey (FIDS) (1960-61).