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Posts Tagged ‘sinkholes’

This weekend Jeff and I descend to the bottom of a cold and dripping sinkhole in Ontario, Canada. It would appear that most are unaware of the existence of these pits, thinking that they only occur in Florida and other places where there have been some well publicized swallowings of people and posessions. Sinkholes occur for several reasons, but in stable rock they develop slowly and predictably over thousands of years and it is only the careless who end up lying broken and dying at their bottom.

In Toronto, it is most likely an underground pipe that has broken and eroded the lake deposited sediment beneath the city streets that would pose a sinkhole hazard. On rare occasions there have been collapse windows that have unexpectedly appeared in farmer’s fields, and of course there have been the celebrated cave-ins around mining communities like Cobalt and Kirkland Lake that have resulted in the loss of buildings. I believe it was in Timmins that a school bus was swallowed up one night with a sleeping beggar who had sheltered there, little suspecting that he would wake up entombed within the earth.

See the Documentary video on the sinkhole that we had explored this weekend – a Deep Mysterious Pit in Ontario Canada – here.

I spend my weekends caving and it appears that for the scarcity of horizontal cave openings near Toronto, it is now the vertical shafts that we are breaking open in hopes of exposing buried tunnels. Pictured here is one such shaft that sinks deep into virgin rock.

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IMGP1675, originally uploaded by Mic2006.

Might this be the hole down which the white rabbit disappeared?

JC and I found this in a valley. Two deep gullies lead up to this spot and there is some obvious overflow where the valley fills up under flood conditions and flows out across the land. The landowner said that he’d heard of this feature, but he’d never really looked.

I believe if I dived down here I might get at least 8 feet before the hole got too narrow and then I’d lie there wedged until my eyeballs popped out or the rabbit set me free. A point on that story (Alice in Wonderland), my mother used to work for the Dean of Christchurch (where Lewis Caroll was a Don) and there was a constant flow of people wanting chestnuts from the Cheshire Cat tree which was right outside her office window – sorry I diverge from caving in Ontario.

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