>https://www.thegatewaypundit.com/2023/01/ukraine-hiding-bakhmut-salt-mines/
Prior to the start of the special military operation in Ukraine, Artyomsol was the largest enterprise for the extraction and sale of table salt in Central and Eastern Europe. It consists of five salt mines, which are located within the city limits of Soledar and Praskovievka: mines No. 1, No. 3, No. 4, No. 7 and the Volodarsky mine. They are interconnected by rail and road, as well as a developed system of underground communications, which, after the outbreak of hostilities, were improved by the military personnel of the Armed Forces of Ukraine.The Artemsoli salt mine system is already being used by the Armed Forces of Ukraine as an underground fortress. Ammunition depots, quarters for personnel, and in some places even hangars for equipment are equipped at great depths. And “get” them from the surface is almost impossible. Underground communications are also used by Ukrainian military personnel to move between positions, and the approaches and some entrances to the mines are mined and ready to be blown up. In terms of difficulty for the assault, the Artemsol mines can easily compete with the famous Azovstal in Mariupol.