Kostal Cone in the Wells Gray-Clearwater volcanic field of east-central British Columbia is a cinder cone responsible for basaltic lava flows comprising a lava bed, damming the southern end of McDougall Lake. There has been activity at this site as recently as 7,600 years ago at Dragon Cone, though more likely less than 1,000 years ago. Kostal Cone is too young for the potassium-argon dating technique (usable on specimens over 100,000 years old), and no charred organic material for radiocarbon dating has been found. However, the uneroded structure of the cone with the existence of trees on its flanks and summit have made it an area for dendrochronology studies, which reveals the growth of tree-ring patterns. Tree-ring dating has revealed an age of about 400 years for Kostal Cone, indicating it formed around 1500. This makes Kostal Cone the youngest volcano in the Wells Gray-Clearwater volcanic field and thus one of the youngest in Canada.