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In Poland, keeping a register of areas threatened by mass movements and landslides monitoring is the responsibility of the staroste1 resulting from the provisions of the Environmental Protection Law and the Regulation of the Minister of the Environment. Pursuant to the Act, the staroste is obliged to observe areas threatened by mass movements of land and areas where these movements occur. According to the Regulation, "for areas endangered by mass movements and areas where these movements occurred, a monitoring is ...

The studies of the rock mass movements on considerable depths can be carried out based on the network of geodetic points, present in the mining excavations. Such a network is very unfavourable in a sense of geometry, because it is, in a large part, built of open traverses. Often the only way to raise the accuracy parameters of such a network is making the azimuth measurements on selected sides of the network with the use of gyrotheodolites. Applying the carried out gyroscopic observations in the levelling of the n...