Tuesday, 13 November 2012
Snow tunnel, Kamchatka, Russia
This is an amazing photo of a snow tunnel in Kamchatka, Russia. I can't find out much about this, although I do know that it was taken in an area where there are thick seasonal snowbanks and where meltwater tunnels run beneath them. There is a chance that the meltwater streams might incorporate water from hot springs, because this is a volcanic area. If the water is warm or even tepid, that would obviously enhance its ability to run down to ground level and maintain quite large tunnels.
I'm pretty certain that this is snow rather than glacier ice. The contact between the snow and the underlying boulders does not look like a glacial contact. Note the old water-line, created at a time when the water level in the tunnel was much higher.