For the ground-source heating, drilling took place 'ten hours a day, for weeks, leaving mud everywhere', as holes were bored deeper than 100 metres into the limestone bedrock.

The magazine was constructed on scree breccia, with underlying limestone bedrock.

It occurs in an oxidized vein in limestone bedrock with galena, ashoverite, wlfingite, anglesite, cerussite, hydrocerussite, litharge, fluorite, palygorskite and calcite.

Fast moving streams and rivers cutting into the limestone bedrock and in places creating caverns and sinkholes.

Their winter dens are subterranean caverns formed by the area's water-worn limestone bedrock.