Why can karst areas have caves without dramatic surface landforms?

Karst areas can possess extensive cave systems with little to no dramatic surface expression because the development of these landscapes is primarily driven by the removal of bedrock through internal, subsurface drainage rather than surface weathering or erosion.1

In such regions, rainfall and surface water are diverted underground into continuous conduits that function as integrated drainage systems. Because this dissolution occurs deep within the bedrock, the surface may remain relatively undisturbed, lacking the characteristic sinkholes, jagged bedrock, or deranged drainage patterns typically associated with karst topography.1

The variation in surface expression is often tied to the specific geological conditions of the area. While some karst regions exhibit prominent surface features, others—such as the Guadalupe Mountains in New Mexico—feature significant cave development despite having very few visible surface karst landforms. Ultimately, the presence of caves is a result of the excavating effects of groundwater on soluble rock, a process that does not always require or produce dramatic changes to the landscape above.12