Vigorous degassing of carbon dioxide occurs from several vents in two bogs near Nazko Cone. These vents are in the form of small isolated travertine mounds on the bog surface. A mound with a partially submerged vent had been identified in 2013 with a steady flow of carbon dioxide. Several new vents with no travertine mound were actively releasing carbon dioxide gas in 2015. Analysis of the carbon-13 isotope in the carbon dioxide gas emissions suggest a magmatic origin. This has led to the possibility of a volcanic geothermal system, the existence of which has been investigated by Geoscience BC as part of their Targeting Resources for Exploration and Knowledge project. The lack of hot springs and geothermal evidence on the surface suggest that the heat source of such a system would be very deep underground.