Posted in adventure in Ontario, Adventures, backpacking, Bancroft, best things to do in Toronto, book on caves, Buy The Book, Canada, Caves, Caves in Canada, caves in Ontario, caving, Caving in Ontario, cool things to do in toronto, Education, environment, exploration, extreme sports, fun things to do in toronto, geography, geology, Interesting, nature, Nature/Outdoors, ontario, ontario caves, Ontario geography, Ontario Underground, Ontario's geography, Ontario's geology, photo, photos, picture of, rockhounding in Ontario, Rocks & Gems, rocks and minerals, rocks in Ontario, rockwatching, searching for caves, sinkholes in Ontario, sports, strange places, things to do in Toronto, Travel, underground, underground Ontario, water in Ontario, tagged cave in Canada, cave near Toronto, caves in Canada, Caving in Ontario, hidden places, hiking near Toronto, Natural marble bridge, secret cave on August 28, 2012|
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JC and I recently visited a cave in solid marble (The Natural Marble Bridge). Our intention had been to follow up river a short distance to see if there were other caves in the area. You might know the old adage – were there is some caves, there are more. Sadly there were no more that we found, but JC found a hole in another nearby valley that was blowing cold air and about 100 meters away, a hole (on the opposite side of the marble bridge) where it looks like the stream that presently runs through the cave must have sunk at one time. A cave dig might be in order when we run out of other going options.
The Natural Marble bridge has an entrance at one side of an elevated ridge of marble, and a downstream exit on the other side of the ridge. The entry way looks quite ominous and the roar of water is impressive – well out of proportion to the quantity that sinks.
Your passage through the cave is quite magical – traversing through bands of marble of various earthy colors, a granite contact being some short distance into the rock (facing downstream to your right).
See video of the natural Marble Bridge here.
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Posted in abandoned, abandoned mines, abandoned mines in Ontario, adventure in Ontario, Adventures, Bancroft, Bancroft gemboree, bats, bizzare, Buy The Book, Canada, Caves, caves in Ontario, caving, Caving in Hamilton, Caving in Ontario, collecting rocks near Bancroft, creepy places, Education, environment, exploration, extreme sports, geography, geology, guelph, Hamilton, history, industrial archeology, Interesting, mine, My Book, my life, mystery, nature, Nature/Outdoors, niagara escarpment, ontario, Ontario geography, Ontario Underground, Ontario's geography, Ontario's geology, Photography, photos, picture of, rock collecting, rockhounding, rockhounding in Ontario, Rocks & Gems, rocks and minerals, rocks in Ontario, rockwatching, searching for caves, strange places, tunnels, underground, underground Ontario, urban exploration, waterfalls, tagged abandoned mines, industrial archeology, mines in Ontario, urban exploration, Urban exploration in Ontario, urbex on September 28, 2011|
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There’s a crevice that cuts under a cliff face. It leads to an underground lake that just goes on and on. Dan and I spent about two hours underground wandering waist deep in water. I am thinking that the mine is somewhere between 100 and 170 years old.
Back in the 1820′s and 30′s there was a serious demand for building stone in Southern Ontario; Whirlpool Sandstone was one of the most valued materials. It was extracted from a layer just above the Queenstone shale.
Near Belfountain you can see this rock at the base of Church’s Falls. See the chapter on Belfountain on page 69 of my book “Rockwatching; Adventures Above and Below Ontario” The rock that came from there was a maroon color and was used to build Queen’s Park and various buildings at University of Toronto. Down here in the more southerly areas of the escarpment the Whirlpool Sandstone seems a lot higher on the escarpment than it is further to the north. It is also more varied in color and I am told that it is possible to find azurite and malachite in chert pockets in that rock.
Anyway the construction of the Welland Canal generated a great deal of demand for building stone as did the increasing size of the urban structures around the “Golden Horseshoe.” Finally around 1900 the skyscraper came into being. The strength of the modern skyscraper comes not from its rigid outer shell but from its internal steel girder skeleton. This change in design meant that standard construction stones suddenly lost their market and materials such as Italian and Indian marbles started showing up. They formed a thin veneer as did materials like glass, labradorite and granite. they were in no way responsible for the buildings structural integrity. Sandstone had seen its day and the mines closed shortly thereafter.
Some years back year Jeff Mirza and I traveled up to Belfountain to see if we could find our way into one of these underground tunnel systems. Apparently there are several deep passages above the hairpin bend as you wind down from Belfountain into the Credit Valley. Jeff had even seen a picture of a shaft in the forest with a ladder leading down into the mines. After a day of trudging along the hillsides we came to the conclusion that the entrances had all been blasted shut. It was not the case here. The tunnels lie wide open. It was as much a historical exploration as it was a geological one. The rooms were quite low though generally very wide and initially lit by small shafts that cut up to a brambly plateau above. The vegetation was so thick that it was almost impossible to progress on the surface, nevertheless, the shafts of light on the underground lake were really picturesque.
At times high banks of rubble rose out of the water and it was necessary to slither along on our bellies. In places deeper into the mine calcite deposition had made a hard, translucent shell across the top of these banks and we had to be careful so as not to damage the profuse clusters of soda straws that were forming on the roof. The bats seemed quite perturbed by our arrival in their world and somebody was cheeping angrily from up a crack in the roof. On several occasions they fluttered by and I could just catch glimpses of their chaotic flight. I was surprised by the extent of speleothem formation in the mine. I had believed that under good conditions soda straws could grow at about an inch every hundred years though in remembrance of a winter excursion Jeff and I had done up a storm sewer in Hamilton a few years back, that one inch can be quite drastically stretched.
As we waded through the lake there were tunnels that branched off in every direction, the air seemed dead and the steam that rose from our coveralls clung to us. it made photography quite difficult.
The water was so still and clear in one spot that I was surprised by the ripples when I crawled right into a pool. We continued on along a mound that was just beneath the surface. Dan wandered off to the side into the deeper water and suddenly found himself hip high in really treacherous mud. I had a similar experience moments later and we decided that further exploration would have to be done with an air matress. Up ahead it sounded like a heavy rainstorm and I think that there must have been a spot where the water was pouring in.
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Posted in abandoned, abandoned mines, abandoned mines in Ontario, adventure in Ontario, Adventures, Bancroft, Bancroft gemboree, Buy The Book, Canada, Caves, collecting rocks near Bancroft, Education, environment, exploration, geography, geology, industrial archeology, Interesting, My Book, my life, nature, Nature/Outdoors, ontario, Ontario geography, Ontario Underground, Ontario's geography, Ontario's geology, Photography, photos, picture of, rock collecting, rockhounding, rockhounding in Ontario, Rocks & Gems, rocks and minerals, rocks in Ontario, rockwatching, strange places, underground, underground Ontario, urban exploration, wierd, tagged abandoned mines, Bancroft, betafite, minerals in Ontario, radioactive rocks and minerals, rockhounding in Ontario, rocks and minerals on August 25, 2011|
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I paid my $2 at the house of the landowner whose property I had to cross and then headed off into the woods. I’d heard that the path to the mine was about 4 miles long (it was not), but possibly longer, and the route was signposted (it was not- or should I say, it was in places).
The attraction at the Silver Crater Mine is a pit and adit that are rich in Betafite crystals. I found a lump of calcite with the top of one such crystal sticking out. It looks like the dull grey top of an octahedron. The adit burrows through a granular calcite which in my opinion does not make for a well-supported roof. So my advice about the adit is to stay out. I went in about 10 feet before coming to this decision.
Aside from radioactive betafite, there is also apatite (turned red by radiation), large books of biotite and horneblende.
See video of the directions here – Directions to the Silver Crater Mine
See video of the mine entrance to the Silver Crater Mine – here (silver Crater Mine) entrance)
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Posted in adventure in Ontario, Adventures, Bancroft, Bancroft gemboree, beading, beads, Buy The Book, Caves, caves in Ontario, caving, Caving in Ontario, collecting rocks near Bancroft, crystals, culture, cultures, gemology, gems, gemstones, geology, Interesting, lapidary, looking for gems, My Book, ontario, ontario caves, Ontario's geography, Ontario's geology, Photography, photos, picture of, rock collecting, rockhounding, rockhounding in Ontario, Rocks & Gems, rocks and minerals, rocks in Ontario, rockwatching, tagged Bancroft, Bancroft accomodation, Bancroft fair, Bancroft gemboree, Bancroft show, Book on caving, Caving in Ontario, rockhounding in Bancroft on July 26, 2011|
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One of the more exciting events of my rock-related year is the Bancroft Gemboree where i can schmoose with other rock-focused people. You absolutely know that this weekend the accommodation in Bancroft and for miles around will be booked solid so either I will be staying with my sister or possibly in Peterborough.
At the Bancroft Gemboree there is every natural crystal from the beautiful to bizarre – a booth of Columbian emeralds, Pakistani Peridot dealers and Russian fellow who sells black power pyramids of some unnamed substance. You stand there long enough he’ll have you convinced to put one in your living room – an investment that will turn your life around. Well if you believe that crystals will heal your warts, you’re well advised to see him as you’re likely thinking along similar lines. I’ll get a picture if he’s there this year and see what he has to say.
If you are into crafting, beading, crystals or geology, or just looking for gems, rough or cut, the Bancroft Gemboree is an event that goes beyond the material presentation of those goods, it’s a cultural event that bonds a motley crowd of locals to a throng of rockhound and crafting visitors. There are two huge venues, though I have always found that the better gem-stuff is in the venue lower down the hill. The best deals at the gemboree are typically outside at the top of the hill though last year I was disappointed.
Maybe next year I’ll get a booth and flog my upcoming Ontario cave book there.
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Posted in adventure in Ontario, Adventures, Bancroft, Bancroft gemboree, Buy The Book, cave conservation, cave digging, cave diving in ontario, cave formation, Caves, caves in Ontario, caving, Caving in Hamilton, Caving in Ontario, diving in ontario, Education, environment, Eramosa Karst, exploration, extreme sports, geography, geology, guelph, Hamilton, Interesting, My Book, my life, nature, Nature/Outdoors, niagara escarpment, ontario, ontario caves, Ontario geography, Ontario's geography, Ontario's geology, Photography, photos, picture of, Rocks & Gems, rocks and minerals, rocks in Ontario, rockwatching, searching for caves, sinkholes in Ontario, strange places, Toronto Cave Group, tunnels, underground, underground Ontario, tagged cave, cave in Ontario, caves in Ontario, Caving in Ontario, Exploration in Ontario, karst in Ontario, sinkhole, sinkhole in Ontario on July 25, 2011|
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JC, GW and I returned to this karstic area to make an attempt on this pit. This is but one sinkhole of many in this area – over 50 mapped nearby, all overlying a buried karst that likely hides caves that we would very much like to find.
We have taken a short break from Wasteland Waterway as it can get quite intense if you do it every weekend. Instead we thought to involve ourselves in something a little less serious – the C… sink was exactly what we needed. It was a sinkhole that had been dye traced by a local university, but inexplicably, with such a perfect pit, they never had the curiosity to descend it.
We carried our ladder for around a half hour through tangled, bush, nettles and along the edge of a corn field until we reached our destination.
At the end of a narrow, steep sided gulley we followed a barely flowing stream as it dribbled over a ledge for a free fall into the underground.
Down below the water pattered down upon us like a cloud-burst, we were soaked in seconds, but we stayed to clear debris from the mouth of a small triangular shaped tunnel. As GW points out, with a little persuasion we will be able to remove the boulder that blocks our way and then we’ve got a going cave dig.
We now have the luxury of one promising cave dig and 2 caves with virgin passage known only to myself, JC and soon to be Greg and Marcus. For Ontario that really is quite remarkable and it becomes increasingly apparent that the karst is there and if you know what to look for, the tunnels soon make themselves apparent.
A short break next week as I’m off to the Bancroft Gemboree – I never miss it. I hear the CGA is there so I’ll stop by to touch base with old collegues. Gems are another of my interests.
Still working hard at getting the next cave book out – it’s looking good. If you are cave-interested, especially in Ontario caves, geology or geography I’m sure you’ll appreciate what I’ll have to offer – again discretion with locations, but like opening a treasure box if you’re a cave searcher you will be totally energised by what you hear and see.
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Posted in abandoned, abandoned mines, abandoned mines in Ontario, adventure in Ontario, Adventures, Bancroft, Bancroft gemboree, bizzare, Buy The Book, collecting rocks near Bancroft, crazy things, exploration, gemology, gems, gemstones, geography, geology, history, industrial archeology, Interesting, Life, mine, mines in northern Ontario, My Book, my life, Nature/Outdoors, ontario, Ontario geography, Ontario Underground, Ontario's geography, Ontario's geology, Personal, Photography, photos, picture of, rock collecting, rockhounding, rockhounding in Ontario, Rocks & Gems, rocks and minerals, rocks in Ontario, rockwatching, sapphires, strange places, Travel, tunnels, Uncategorized, underground, underground Ontario, urban exploration, tagged abandoned mines in Northern Ontario, Boulter road near Bancroft, collecting minerals near Bancroft, collecting minerals near Craigmont, corundum, corundum in Northern Ontario, Corundum in Ontario, corundum near bancroft, Craigmont, nepheline syenites, old mine tunnels, Ontario rockhound, rock Hounding, rockhound, rockhounding, Rocks & Gems, rocks and minerals, sapphires in Ontario, Syenite, syenite in Ontario, Syenite under Robillard Mountain on January 29, 2011|
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Beneath Robillard Mountain
Craigmont is about as distant from the reach of the modern world as you are likely to get in the “near north”. Indeed it appears on the map as a substantial settlement but as you cruise up Boulter road you become aware of how far you really are, both geographically and culturally from the bustle of Southern Ontario.
Coasting over hills that stretch off greenish-blue into the summer haze it seems as though you are crossing into a time warp. Meadows are saturated with intense colour and high pastoral fields line the road, strewn with orange and yellow flowers. Beyond this lies the valley of the “Little Mississippi River”. Spike-topped conifers wander unbroken to the horizon and in hillside fields lazy cows watch disinterestedly at the crumbling demise of old log barns.
As a collecting locale, Craigmont is remarkable. Not only is the beauty unsurpassed but its minerals are spectacular. Corundum here is found in large euhedral (perfectly formed) specimens; lapidaries have been known to cut them into cabochons. In their book, “Rocks and Minerals of Ontario” the Ontario Department of Mines say that there are unusual curved mica crystals. Garnets, molybdenite, allanite, uranite, euxenite, magnetite, pyrite and hornblende also appear from time to time.
Blink and you just might glide past Craigmont. The inhabited part is now a private town. It exists as a cluster of houses, barns and sheds and around it the vegetables flourish in earthy rows.
Robillard Mountain is situated within sight of the present habitation; an impressive upheaval of rugged red rock. Some twenty separate excavations scar its slopes.
As a general rule most corundum is found in pegmatites and structures associated with nepheline syenites. In this area north of Bancroft the most abundant deposits (corundum) are said to be sandwiched between scapolite, nepheline andesine and a band of alkaline syenite.
I took a hike beneath the mountain to see the syenite from below.
More on corundum in Craigmont here …
Check out this abandoned mine in Cobalt ... Here
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