The CVO reports that a bubbling lake has formed near the vents where the ash and steam has been coming out.

BBC: Mount St Helens spews out steam and ash on 5 October 2004

Thermal vents among the trees on the hillsides let off jets of hot steam from underground caverns.

BBC: A return to Middle-earth

As you drive through the country, you are likely to notice steam leaking from crevices or spewing ahead on the horizon -- evidence of geothermal vents and hot springs.

BBC: Soaking in Iceland��s social scene