One point of absolute location in Antarctica is 90 Degrees S, which happens to be the location of the South Pole.
All science centers in Antarctica are preceded by a [location name] Research Station. Location names can be Palmer, Davis, McMurdo, Scott Base and so forth.
McMurdo Station is located on the southern tip of Ross Island, which is in the New Zealand - claimed Ross Dependency on the shore of McMurdo Sound in Antarctica.
McMurdo is not a colony. McMurdo is a science research station developed by the United States of America.
McMurdo Station is about one square kilometer in size.
McMurdo Station in Antarctica is supported by the United States of America through its National Science Foundation. All of Antarctica is managed by the Antarctic Treaty.
McMurdo Dry Valley, Antarctica
You can find McMurdo Station using GPS coordinates 77°51′S 166°40′E.
The McMurdo Antarctica station was opened in by the United States in 1956. It had been used previously under different names by British explorers. The temperature is rarely above freezing.
The McMurdo Dry Valleys lie across McMurdo Sound from the McMurdo Research Station, and are areas devoid of ice. This landscape has been compared to the surface of the planet Mars.
The US has McMurdo, Amundsen-Scott and Palmer stations on Antarctica
The McMurdo Station, Operated by the United States.