I only have eleven left (ZNB)

The number twelve is steeped in both mysticism and symbolism and can be found in the sacred texts of various religions. However, I approached it from a different direction, from Železná Ruda. Basic leveling points (ZNB) are used to ensure the Czech state leveling network. There are a total of twelve of them and they are conveniently located on our territory in selected locations determined on the basis of geological assessments. Stabilizing these…