The island was first mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1959-65.
The peaks were mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1961-66.
The entire feature was mapped by the United States Geological Survey from U.S. Navy air photos of 1962-65.
It was mapped by the United States Geological Survey from ground surveys and U.S. Navy air photos, 1959-66.
It was mapped by the United States Geological Survey (USGS) in 1974.
The peninsula was mapped in detail by the United States Geological Survey in 1974.
It was mapped by the United States Geological Survey from tellurometer surveys and Navy air photos, 1960-62.
The feature was first mapped by the United States Geological Survey from U.S. Navy aerial photographs taken 1959-60.
It was mapped by the United States Geological Survey from surveys, 1962-63, and U.S. Navy photography taken 1958-63.
The range was mapped by the United States Geological Survey from U.S. Navy aerial photographs, 1966-69.
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