Supplément à l’article: « Sibérie: la mine perdue de Batagol et le pays secret des Soyots » I. Okinsky region « Okinsky region, or shorter Oka, is one of seventeen counties of Buryat republic. It is the most remote part of Buryatia, situated to the West of capital city Ulan-Ude on the range about 600 km.