Cryosols and Gleysols were described which form the basis of soil cover of drained spaces of trans-polar territory of Pur-Taz interfluve (Western Siberia, Russia). Their properties were characterized by a series of physical and chemical indices such as soil texture, field humidity, content of carbon and its group composition, рН values, exchange bases and hydrolytic acidity. The soils under study were named by World Reference Base, 2007. Conformity was considered to concern names of the studied soils with those of soil groups represented in Soil Atlas of the Northern Circumpolar Region, 2010. Iodine content in the profile of soils was under consideration. It was correlated with some physical and chemical indices, and also environmental estimation of iodine content was given for soils of the north.