Assessment of the accuracy of hypsometric plans of deposits and geological sections is of great importance for their correct use in mining and exploration purposes and in the choice of rational methods of exploration of deposits.

Hypsometric plans of deposits are the most important documentary and working materials both in the period of design and construction of mining enterprises and in the period of their operation. Naturally, therefore, when using hypsometric plans, the question of their accuracy inevitably arises. However, as a rule, the accuracy of hypsometric plans, built on the data of detailed exploration, is not assessed. This is explained, on the one hand, by the fact that the accuracy of hypsometric plans is not subject to specific requirements, and on the other hand, by the fact that due attention is not paid to the development of methods for assessing the accuracy of depicting the shape of deposits.