There has been activity at this site as recently as 7,600 years ago, though more likely less than 1,000 years ago. Kostal Cone is too young for the commonly used potassium-argon dating technique (usable on specimens over 100,000 years old), and no charred organic material for radiocarbon dating has been found.
The site has been active recently, possibly less than 1,000 years ago, though evidence suggests activity as far back as 7,600 years ago. The dating techniques used are not suitable for the site's age due to limitations in potassium-argon dating (usable on specimens over 100,000 years old) and lack of charred organic material for radiocarbon dating.