All five missions were successful, and 99% of the Moon was mapped from photographs taken with a resolution of 60 meters or better.
It appears that this feature was first observed and roughly mapped from aerial photographs taken by the Byrd Antarctic Expedition, 1928-30.
First mapped from aerial photographs taken by U.S. Navy Operation Highjump, 1946-47.
The glacier was mapped from aerial photographs taken by U.S. Navy Operation Highjump, 1946-47.
Mapped by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition, 1936-37.
First mapped from aerial photographs taken by U.S. Navy Operation Highjump in January 1947.
It was mapped by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition, 1936-37.
Mapped by USGS from U.S. Navy aerial photographs taken 1966-69.
It was mapped from surveys and aerial photographs by the Norwegian Antarctic Expedition (1956-60) and named Svarthamaren ("black hammer").
Mapped by the USGS from surveys and U.S. Navy aerial photographs, 1960-63.