Kurma archaeological location is situated on western side of Maloe Sea of Lake Baikal. To this moment there are known three centers for iron production - Kurma 18, Kurma 28 and Kurminskoe Ozero 1. They are addressed to the end of I mill. BC - I mill. AC. In 2011 near to Kurma authors seek the ore which could be used for iron production in the past. In Olkhon Area there are several types of iron ores: limonite, iron quartzite, ferruterous quartzites, jaspilite, ore gneissis, crystalline schists, magnetite of diluvium of foothills of Primorsky range. On of the probable source of ore concentrate for iron production is the magnetite sand because it need not huge efforts for ore crushing.