Mont Oave, Mountain summit in Ua Pou, French Polynesia.

Mont Oave is the highest point of Ua Pou in the Marquesas Islands, rising to 1,203 metres. Its summit is a basalt pillar, and the mountain's upper section splits into three vertical peaks: a central, slightly lower summit flanked by a taller pointed peak to the left and a massive, rounded spire to the right. Dark grey rock faces carry patches of green vegetation on the lower slopes and between the peaks.

Mont Oave is one of the basalt columns that give Ua Pou its characteristic relief, though the French sources note it is not the most geometrically regular of them. It is the island's highest point, and the summit itself is a basalt pillar. The French Wikipedia gives its altitude as 1,232 m, while the English article states 1,203 m.

Mont Oave appeared on two French postage stamps, issued in 1979 and 1985, which put the summit of Ua Pou on mail travelling well beyond the Marquesas. The stamps are the main trace of the mountain in wider French visual culture.

The summit stands at 1,203 m on Ua Pou, reached by trails from the island's coastal villages; the climb crosses steep volcanic terrain and demands sure footing. The island is served by air from Tahiti and Nuku Hiva, and boats call at the main village. Rain falls throughout the year, so check conditions before setting out.

Mont Oave's summit is a basalt pillar, and its topographic isolation of 846 kilometres is the 55th greatest of any peak on Earth. The nearest higher mountain lies across open ocean, which is why the summit appears on French postage stamps issued in 1979 and 1985.