Marotiri is a group of four uninhabited volcanic rocks protruding from the sea (and several submerged rocks), forming the southeastern end of the Austral IslandsofFrench Polynesia. Marotiri is also known as Bass Rocks (Îlots de Bass in French),[2] maybe according to the name of the European explorer George Bass. Marotiri is very isolated,[3] located about 1,167 km (725 mi) west-south-westward of Pitcairn Island.[4] The closest island is Rapa Iti, 75 km farther northwest, but separated from it by an ocean depth of more than 1,500 meters.[5] The rocks are part of the municipality of Rapa.
Marotiri or Bass Rocks
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  Marotiri Show map of French Polynesia  Marotiri Show map of Oceania  Marotiri Show map of Pacific Ocean | |
| Geography | |
|---|---|
| Location | Pacific Ocean |
| Coordinates | 27°55′S 143°26′W / 27.917°S 143.433°W / -27.917; -143.433 |
| Archipelago | Australes |
| Total islands | 4 |
| Area | 0.0431 km2 (0.0166 sq mi) |
| Highest elevation | 113 m (371 ft) |
| Highest point | Southern Rock |
| Administration | |
France | |
| Overseas collectivity | French Polynesia |
| Administrative subdivision | Austral Islands |
| Commune | Rapa Iti |
| Demographics | |
| Population | Uninhabited[1] (2012) |
The climate is wet temperate. The lower rocks are almost devoid of vegetation - although there is some vegetation on the upper slopes and summits.[4] They are important as a seabird rookery. Fish abound in the adjacent waters. The rocks emerge from a submarine platform 100 meters deep and 5 km in diameter. They lie at a distance between 1.5 and 3 km from one another. The total land area is 43,100 m2, which is broken down as follows by the individual rocks:
| Rock | Area (m2) |
|---|---|
| Northern Rock | 5,800 |
| Central Rock | 1,800 |
| Southern Rock | 22,400 |
| Western Rock | 13,100 |
| Marotiri | 43,100 |
The southern rock is the largest, with a height of 113 meters at its highest point.
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