Due to the economic and technical progress of countries and regions in Europe, the necessary and possible transport communications, power lines (power lines), various pipelines and other linear structures were laid through the Alpine Mountains. The Caucasian Mountains in this part are strongly lagging behind. The railway crosses the Main Caucasian Ridge (MCR) only in the western part up to the Black Sea coast, and the automobile road is in the Central part through the Cross Pass along the Georgian Military Highway and the Roksky Pass along the Military Ossetian Road. The Gas pipelines and power lines were laid in the same areas. At the beginning of the 11th century, the Dzuarikau - Tskhinval pipeline was laid to provide gas to the population of South Ossetia. In the peak position this gas pipeline is the highest one on a global scale being of a particular organizational interest. Of the same interest is the construction of a road through the Roksky Pass, hereinafter referred to as Transkam. Organizationally, these two linear structures had to be laid on the automobile road as a temporary one and a technologically advanced soil and gravel road on the gas pipeline at an absolute height of more than 3,000 meters. These roads have important social, economic, agricultural and strategic importance which is considered in this article.

The life cycle of a road in mountainous conditions, as a complex dynamic system, is fundamentally different from the plain. The comparison issues in terms of work technology and road safety are completely incompatible. In the same system, the methods for optimizing safety problems are incompatible, as the road transport system on the plain is almost in a static position, and it turns into a complex dynamic systemin mountainous conditions, from the impact on it of slope phenomena such as mudslides, landslides talus and avalanche-glacial (ice) are referred to in the literature this time as surface or exogenous processes. The qualitative indicators of these mutually influencing factors are under investigation. Faced with a multitude of terminological varieties, in order of discussion, it would be correct to call them “Slope phenomena”. Depending on the location of the centers of development of slope phenomena and their impact on the road to the axis of the road, they transform the road transport system into a complex dynamic system from a static state. Slope phenomena on mountain roads are a big problem and the optimal safety solution from each type of impact on the road is of current importance, as generally theoptional safety is ensured in a complex dynamic system in mountain conditions.

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The article provides information on the history of the development of Sadon ore field, Tyrnyauz tungsten-molybdenum and Urupsk deposits. A description of landscape changes occurred in the process of mining and processing of non-ferrous metal ores in places of mining enterprises dislocation is given. It has been shown that soil pollution in the area of mining facilities activity with heavy and toxic trace elements has mineralization of mining origin. It has been established that in the areas of dislocation of existing mountain objects, landscapes and soils, which are an integral part of ecosystems, have a pronounced zonation, each of which has certain components that influence the formation of ecological situation. Low levels of lead and zinc have been found in seasonal vegetables (potato tubers) and high, exceeding MAC – in perennial fruit crops (apples, pears). It is noted that only the use of scientifically based measures based on real positive results, taking into account geo-environmental factors, can affect efficient environmental management under the considered conditions.