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Medvezhia Caldera (Moyoro Caldera) Relief Map, SRTM-1.jpg
Highest point
Elevation 1,125 m (3,691 ft)
Coordinates 45°23′13″N 148°50′35″E / 45.387°N 148.843°E / 45.387; 148.843
Location Iturup, Kuril Islands, Russia
Mountain type Somma volcano
Last eruption October 1999

Medvezhya (Russian: Медве́жий; Japanese: 茂世路岳, Moyoro-dake) is a volcanic complex located at the northern end of Iturup Island, Kuril Islands, Russia. Rheniite, a rhenium sulfide mineral (ReS2), was discovered[1] and approved in 2004. It is found in active hot fumaroles on the volcano.

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  1. ^ Korzhinsky, M.A.; S. I. Tkachenko; K. I. Shmulovich; Y. A. Taran; G. S. Steinberg (2004-05-05). "Discovery of a pure rhenium mineral at Kudriavy volcano". Nature. 369 (6475): 51–52. Bibcode:1994Natur.369...51K. doi:10.1038/369051a0.

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