Premise: Olga Bay larch or Olgan larch ("Larix olgensis"), a species of larch, is named after Olga Bay in the Sea of Japan. The common name in Chinese is 黄花落叶松 (pinyin: huang hua luo ye song). This species occurs in Central Sikhote-Alin, and rarely occurs in North Korea, and Jilin and eastern Heilongjiang provinces of China, between 500 and 1100 metres in elevation.
Hypothesis: it is found at very high depths