Plateau research station
...that the U.S. Navy and NSF Plateau research station on the Antarctic Plateau, though operational for only three years from 1966 to 1969, measured the coldest average monthly temperatures on Earth?
...that the <a href="./United_States_Navy" id="mwE4M" rel="mw:WikiLink" title="United States Navy">U.S. Navy</a> and <a href="./National_Science_Foundation" id="mwE4Q" rel="mw:WikiLink" title="National Science Foundation">NSF</a> <b id="mwE4U"><a href="./Plateau_Station" id="mwE4Y" rel="mw:WikiLink" title="Plateau Station">Plateau research station</a></b> on the <a href="./Antarctic_Plateau" id="mwE4c" rel="mw:WikiLink" title="Antarctic Plateau">Antarctic Plateau</a>, though operational for only three years from 1966 to 1969, measured the coldest average monthly temperatures on Earth?