Declaration
The territory in the Antarctic Seas which comprises all the islands and territories other than Peter I Island which are situated south of the 60th degree of South Latitude and lying between the 90th degree of West Longitude and the 150th degree of West Longitude is hereby under the authority of the Empire of Marie Byrd Land.
Notes
The territory contains land from the areas commonly known as Marie Byrd Land and Ellsworth Land. It represents the vast majority of the former and a portion of the latter. This territory covers 1 610 000 km2.
Map
The official Marie Byrd Land map is found below. This Marie Byrd Land Antarctica map separates the Empire of Marie Byrd Land’s territory by highlighting it in red while other countries’ antarctic claims are highlighted in white.

Please see the credits for this map under number 1 here.
Size
The overall Marie Byrd Land size is 1 610 000 km2 or 620 000 mi2. This large area makes the Empire of Marie Byrd Land one of the largest countries on Earth.
Weather
The Marie Byrd Land weather is characterized low temperature and minimal precipitation. Most of the precipitation falls in the form of snow. Due to its location in the southern hemisphere, the summer is from December to February and sees extremely long days. Conversely, the winter is from June to August and sees extremely long nights.
Temperature
The average Marie Byrd Land temperature is -28°C or -18°F. This makes the Empire of Marie Byrd Land the coldest country by far on average.
Terra Nullius
The doctrine of terra nullius, Latin for “land belonging to no one,” refers to a principle in international law whereby territory unclaimed by any sovereign state can be deemed open for acquisition. Historically, this concept underpinned claims over uninhabited or sparsely populated lands. Marie Byrd Land, a vast, remote region of Antarctica, has remained one of the few places on Earth classified as terra nullius and the only place to have never been claimed by a sovereign state. The Empire of Marie Byrd Land’s claim to Marie Byrd Land is therefore legitimate under the principle of terra nullius, as no sovereign state has ever asserted a prior claim to this territory.