The Yablonoi Mountains or Yablonovyy Mountains are a mountain range in Siberia. The range runs north-east from Mongolia, passing just to the east of Lake Baikal. They run for about 1600 kilometers before joining with the Stanovoi Range. The range forms the dividing line between the rivers that empty into the Arctic Ocean and those that empty into the Pacific. The isolated range is sparsely inhabited, with most of the settlements being based around mines. The area is especially rich in tin. The Trans-Siberian Railroad runs parallel to the range before going through a tunnel to bypass the heights. The range is not particularly tall or large being long and thin. The tallest peak is Mount Sokhondo at 2,500 meters.