http://maps.google.fr/maps?ll=-66.603462,99.720033&z=17&t=h&hl=fr
The entrance to inner Earth ;)
Bye!!!
P.S.: now let's see in how many days this thing becomes the lastest news on non-science sites/blogs (pseudo-science is too good for them).
lava bubble ?
odd for sure!
It's a vertical cave, carved by water which melted from a glacier (which melted away) of snow pack on a mountain.