What landscape in which a layer of limestone close to the surface erodes into deep valleys caverns and sinkholes is called?

The landscape is called karst topography. This unique landscape forms when limestone bedrock is dissolved by acidic water over time, which leads to the creation of features such as sinkholes, caverns, and underground rivers. Karst topography is commonly found in regions with high levels of limestone, such as in parts of Kentucky, Florida, and China.