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Posts Tagged ‘Caves of Canada’

We visited a beautiful – pristine marble cave in Northern Ontario this week. The cave had initially been discovered in 1964 by Bob Burns and it was documented the following year in an archive that was managed by Derek Ford. The last visitors to this cave were Marcus Buck and Brad Wilson who spent the time to make a highly detailed map of the underground tunnels. This cave had been known by another name, but we had to change it to protect it’s location (on the advise of Brad and Marcus) The new cave name is after the former owner of the cave who has since passed away.

By its most simple understanding, the rock in the area dips quite steeply into the earth and there is a large swamp with a dry valley running parallel to it. We began our search for the cave based on Marcus’s memory of his visit many years before and so we made a few wrong turns before we finally found the cave. Whereas it is relatively easy to predict cave entrances in limestone – whose surface topography depicts what lies beneath quite accurately – here in the north, the contortions of marble and calcite veins are not so simply seen upon the surface. On the bright side, we did find a small sink point in the dry valley that might justify a second look.

See the video of Marvin’s Cave here.

When we first stumbled across Marvin’s Cave we actually came upon the point where the upper cave took water directly from the swamp, broke onto the surface for a short distance and then dropped down through a series of crevices into the lower system.

Marvin’s Cave is typified by a number of small cataracts that move its stream beneath the edge of a small escarpment in the forest. JC and I made a chilly October exploration up its stream that was still darting with minnows in mid-October. The main features in this cave are its two bowed out stream passages through incredibly banded marble. There are several sizeable rooms within the system, heavily littered with breakdown.

For more information on caving in Ontario, buy my book, “Caving in Ontario; Exploring buried Karst”. There is a link on the side of this page that connects to “Lulu” where the book can be purchased.

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On the surface it was sweltering and buggy, but in the dolostone rock beneath the water was icy cold and I was plagued by a constant drip, drip, dripping that frequently found my eye.

Jeff, Greg and I had returned to the cave that we had recently found to do some digging and hopefully expose a tunnel that we thought must exist somewhere beneath the choke of branches and leaves.

We were absolutely stunned by what we found in about two hours of digging – mind you my thighs and back are paying for it now. In front of us the tunnel wall fell away and beneath we could see a passage.

See video on Prometheus; cave of the alien – here

Although the tunnel is tight we theorize that this might be a feeder tunnel as the scallop orientation suggests that possibility and also the size of the in-flowing stream also leads us to suspect that we are yet to make the most significant discovery.

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