Zhijin Cave lies in karst, where slightly acidic water dissolves limestone as it moves through cracks. The geopark explains that groundwater enlarges fractures into passages. As terrain changes and the area rises, underground routes shift: older passages remain higher while newer flows occupy lower levels. Groundwater routes shifted as the terrain rose, leaving passages at different heights.
From the journal
Zhijin Cave: Former Rivers Preserved Below the Surface
Different cave levels preserve a history of groundwater routes, mineral deposits and uplift in a limestone landscape.
In the same city · Bijie ↗
Where limestone meets moving water
A cave with more than one floor
The geopark’s 2015 profile described four levels, 47 halls and 4,215 metres mapped. These are dated survey figures; the durable feature is the vertical arrangement. Stalactites, stalagmites, columns and flowstone form as mineral-rich water deposits calcite over time. Dripping, flowing and pooled water leave different shapes on ceilings, walls and floors.
A local cave enters geological study
The geopark dates discovery to 1980 and opening to visitors to 1985. Mapping made the underground system legible as more than a succession of chambers. Its model links cave levels, groundwater and repeated uplift. Zhijin Cave belongs to the Zhijindong UNESCO Global Geopark, an international geopark designation distinct from World Heritage inscription.
The underground follows the landscape
Rain infiltrates the surface, enters fissures and descends through soluble limestone; drainage returns underground water to springs and streams. Zhijin retains forms left by some of those routes after water moved elsewhere. Its halls are not isolated spectacles: their heights and mineral shapes preserve how karst changed through water flow and uplift over long periods.