Cave Shaft at Twin Trickles – exploring rocks and minerals from within (Bancroft)

Cave Shaft at Twin Trickles – exploring rocks and minerals from within (Bancroft), originally uploaded by Mic2006.

In the Fall 1998 edition of the Canadian Caver, Brad Wilson relates an interesting experience that he had while exploring a remote cave in the Canadian Shield. He says that he could see a small room beyond a horribly tight squeeze so instead of going face forwards like he would normally do, he went feet first and after a little struggling he suddenly slipped through into a tube – chest deep into icy water. As Brad points out, to have gone head first would likely have been the end of him.

Exploring the rock from within, as we did at Twin Trickles Cave was certainly an amazing experience. The marble and calcite was incredibly sculpted and at the bottom of the shaft pictured above, there was a room that was bowl-like, and entirely striped black and white by the surrounding rock. When I mention a cave in the same sentence that I mention Bancroft, I do not for an instant suggest that it is a site for rock and mineral collecting. Caves are natural wonders that have been thousands of years in the making. They should be left exactly as they are found.

Check out this video documentary of exploring rock and minerals from within (Bancroft) here.

Twin Trickles Cave is some short distance into the forest and on the day that we visited, it was horribly inundated with ferocious black flies – food for the bats that reside within. although Twin Trickles is not a large cave, the rooms are sizeable for Ontario and there is a long tubular tunnel that seems not to have been followed either by ourselves or Brad’s group in 1987 – obviously it is no easy task and it dips down toward the water table. There are plenty of unprobed leads in the area of Twin Trickles so there will be more trips up in that direction this coming summer.

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Embryo Cave, a cave in marble near Toronto

Embryo Cave, originally uploaded by Mic2006.

JC and I spent the weekend at one of our favorite northerly destinations exploring both Embryo and Twin Trickles caves. Both these caves are seldom visited and if it were not for the initial visit by Marcus and Brad they likely would be entirely forgotten by now.

Both Embryo Cave and Twin Trickles are marble caves at the edge of the Canadian Shield (near Toronto Canada), but they are very different in character.

Much as you might imagine, Embryo Cave is a cave that is smooth inside, easily traversed, the long borehole crawl being in soft silt, while Twin trickles is a cave in which you shred your knees, cave suit and anything else on or around you. The rock in Twin Trickles is sharp and jagged, the cave dips quickly downward through jagged portals and though the marble is beautifully banded there is more a feeling of intimidation in this cavity, it varies between tight and spacious, dry and soaking wet, jagged and more jagged, with lots and lots of black flies – see video on Embryo Cave here.

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Precambrian Marble Cave

IMGP1872, originally uploaded by Mic2006.

JC and I have a lead on a Pre-Cambrian marble cave that we will be exploring on Thursday. Most exciting is the fact that the area is host to several known tunnels – they are small but beautiful and where there are some, there are more. Best thought in this area will be to speculate on what is buried. The surface geography will be our initial clue, we will be looking at unexplained dips in the soil, sink points and resurgences, contacts between marble and granite, and possible funnel points that have been created by glacial erosion.

Either way there will be some good pictures of the known cave (assuming that we can find it) and hopefully we can find something else in the area that presently lies waiting for us to discover it.

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Exploring Stone Church Cave

Exploring Stone Church Cave, originally uploaded by Mic2006.

When the railway engineers sealed Stone Church Cave they must have thought they’d done a pretty thorough job, and in reading E.D. Ongley’s 1965 BA. thesis, I had thought the same myself, however, on the off chance there might be some surface clues I visited this area with a friend (Jeff) and was immediately able to access the suspected Stone Church Cave as the retaining wall that had been built by the railway has collapsed. Ongley was entirely correct when he theorized that there might have been a buried system in the area, this thought being derived from his observation of an albino crayfish in the railway tunnel.

There is a sizable space that leads off from the railway drainage tunnel and because of blowing air from a hole nearby I suspect that there might still be a tunnel sealed behind the retaining wall on the opposite side of the tunnel as well. When I look at that wall to the right of the above picture I suspect that I can see points from where a tunnel might lead, deeper into the rock. Just because the railway blasted their own drainage route, across the natural tunnel path does not mean that where the water now leaves the rock is where the water always left the rock. There is a low lying area nearby that has been cut off from Stone Church Lake and I wonder if the old drainage route had taken the water that was sinking from the swamp, moved it underground and then either had it meet the surface in that low lying area and from there it drained down through the rubble against the wall of the hill. I noticed that there was a seam of rock about 20 wide in this hollow that was eroded back into the side of the hill. Debris covers the natural seam, but the cleft that is made suggests that the rock is easily worn or decomposed; could this be the subterranean route by which the area is drained?

A surface search revealed a shaft leading down into the natural cave near the upstream insurgence.

To see a short video of the exploration of Stone Church Cave – click here.

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Video on Looking for Caves at the edge of the Canadian Shield – Stone Church Cave (Ontario)

Stone Church 1, originally uploaded by Mic2006.

In 1965 E.D. Ongley produced his much sought after caving manuscript, ‘A Study of Caves in Southern Ontario’. In that work Ongley mentions the existence of Stone House Cave, a tunnel that had been blasted by the railways to drain a swamp that was seasonally flooding the nearby railway. In that blasted tunnel Ongley had found an albino crayfish and he speculated that the side of the tunnel, which had been blocked by a human-constructed rock wall, likely led onto a deeper, natural cave.

In the attached video, see – Looking for Stone Church Cave here, I show the caving possibilities at the edge of the Canadian Shield and I explore the small tunnel pictured above. This is not the fabled Stone Church Cave, but it is context for the next post that I will publish, which is the now revealed – Stone Church Cave.

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The Newt of ‘Noot’s Nook’ – A Documentary Video of Cave Wildlife in Ontario

The Newt of ‘Noot’s Nook’ – Cave Wildlife in Ontario, originally uploaded by Mic2006.

It’s hard to imagine how thrilling it was to see this wonderful yellow spotted newt. He crawled out from beneath a rock as we were digging in Newt’s Nook, a local cave near Toronto (Ontario).

Newt’s have both a terrestrial and aquatic phase to their life, they hatch from eggs at a length of about 1 centimeter and they exist on land, hiding beneath leaves and old logs. Officially a young land-dwelling newt is referred to as an ‘eft’. After about 3 years the eft moves into a swamp to continue the remainder of its life (about 10 years), flippering about in the mud and slime.

I am thinking that maybe the yellow spots have something to do with warning other animals to stay away. I understand there are toxins in the newt’s skin that make them poisonous to everything but a garter snake. Apparently there is a ploy whereby a beleaguered newt flops over onto it’s back to display a belly that reddens in proportion to its anxiety – another form of warning. Once transplanted from the spot beneath the rock that we found it, the newt blinked myopically and then began dragging its feet in a slow but persistent dash for the nearest crevice.

See this documentary video of our dig at Noot’s Nook and the discovery of the above pictured creature – here.

Our intention is to return to Noot’s Nook and continue following downward toward tunnels that appear to exist about 3 feet beneath the solid base of the cavern in which we found the newt. It is possible to see the space below through a narrow crevice. However great our excitement, we must exercise care as safety is paramount on any dig – especially where there is so much loose rock.

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At the bottom of the sinkhole; A deep mysterious pit in Ontario, Canada

At the bottom of the sinkhole; A deep mysterious pit in Ontario, Canada, originally uploaded by Mic2006.

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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What to do on a Winter Day in Toronto Canada – Video on Ice Caving Adventure (Toronto University)

What to do on a Winter Day in Toronto, Canada, originally uploaded by Mic2006.

The above picture is of the inside of Travertine Cave, which is situated at location near Toronto, Canada. We visited one winter day quite recently. While at University I often remember sitting there wondering what I could find to do aside from studying (of which I did precious little) (Toronto University, or possibly University of Guelph, or McMaster University – Hamilton, are close to here).

In the accompanying video – What to do on a winter day in Toronto Canada – Ice Caving Adventure (Toronto University) I detail my attempts to explore the cave and the unfortunate accident that I had which now leaves me aching and bruised.

Of particular interest was the observation that deeper into the cave – well past the flowing water at the entrance, was the realization that water was also flowing outward from within. I had always thought that Travertine Cave was simply a shelter that had formed as Tufa seeped over the edge of a low cliff. Water flowing from within might suggest the possibility of a solution cave and tunnels that are more extensive than I had imagined.

The ice formations in Travertine Cave were also very unusual. A strong breeze blows through the cave and the resulting icicles are flat and bladed with square protuberances at the bottom of each hanging pendant. I am left wondering what freak of climate or geography would so consistently create that unusual shape amongst not one, but all of the icicles hanging in a certain area of the entry grotto.

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Caves near Guelph, Canada

Caves near Guelph, Canada, originally uploaded by Mic2006.

Jeff and I believe that this small group of shelter-like caves near Guelph, Ontario, Canada might well be the resurging exits to a system that slopes downward from the river valley along the bedding plane. It appears that from the visit that we made, the tunnels all slope downward and are soon filled with clay and gravel.

See the video on a few areas that we were looking at here

It appears that since our visit the previous weekend, the ice crawl into the #8 cave has got significantly tighter. The February thaw and then flash-freeze has almost closed some passages in places. I vaguely entertained the thought of the tunnel freezing shut behind me. That would be a nasty way to die, especially considering that lying on the ice, with my coat pulled up from my stomach I was getting a taste of how it would feel to be slowly freezing.

Anyway, we did find a spot with blowing air on our previous visit and we also saw 2 likely spots where digging might open further passage. I am reminded of the dig and railway system that I had once seen in the Cheddar Cave. Eventually those cavers reached the river Axe and from there some incredible stories of underground and underwater exploration.

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Winter cave trip – Rockwood

Winter cave trip – Rockwood, originally uploaded by Mic2006.

I love the underground ice formations, they are especially abundant after the type of recent freeze and thaw that we have been experiencing here in Ontario. Most of the more impressive decorations are concentrated at cave entrances.

Up in Marmora the cave ice is greatly varied – in particular in the tunnels at the entrance to Spanky’s paradise. I recall beautiful crystal clear curtains that I actually wacked my helmet up against before I realized they blocked the passage. It seems that in Rockwood it is the ice stalagmites that are most common. see the video here of a short excursion that we made into the entrance of number 8 cave.

See video of Rockwood cave ice formations here.

We avoided the main cave as bats are sometimes known to over-winter there – the extent to which there are any surviving bats in the Rockwood Caves is questionable as they are heavily traveled and badly trashed. We did however discover a small hole with some future potential exploration – a summer trip. The amount of roof encrusted ice crystals indicated the possibility of air blowing from within. These crystals lined the roof along the passage for at least 10 feet and shortly past the entrance the air became moist and foggy.

Check out this video of a cave trip in the UK – wish I was there, looks warmer – near tropical in fact

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