The Marmora area in the winter (a few hours north east of Toronto) certainly gives the impression of pristine Canadian wilderness, it feels wild and remote and it certainly is most beautiful. JC and I made the 3.5 hour drive from Guelph / Hamilton this past weekend with the intention of busting open some cave passage in the vicinity. There is this escarpment that is buried under forest and beneath which we know cave passages must exist. It is not a question of there being caves, it is only a question of how to reach them.
Along our route we passed over the Crowe River and beneath the water you can see the local geology, a karst landscape of weathered limestone, joints and fissures and eroded bedding planes down which the water flows.
As for breaking into the tunnels that we had hoped to reach we were sadly unsuccessful. Everything was frozen together, the slabs of rock were way bigger than I’d remembered and crowbar, shovel and human effort were grossly ineffective. On the bright side we have scouted what appears to be a simpler underground route, a tunnel that is partially clogged by boulders, but which could be clearable with about a day of effort. I believe we could wiggle along a bedding plane and soon reach the spot that up until this weekend seemed only accessible beneath about 100 tons of rubble.
In addition to the escarpment connection tunnel, JC and I also pushed a previously known connection that we had called Argument Hole and discovered that it continued on – possibly into the upper tunnels of the Marmora Maze Caves. We had been avoiding the traditional entrance that Josh and I had uncovered some years ago as it looks unstable and a visit is hardly worth being buried alive.
Learn more about the Marmora Maze Caves and their discovery in my book ‘Caving in Ontario; Exploring Buried Karst’ here.
So for a winter exploration near Toronto, I’d say we had a pretty successful day, but now a day later I feel absolutely shattered and I believe JC can hardly feel to much better – he’d wrenched his shoulder when the ice gave way along the escarpment edge and he fell into a crevice. I’ve felt like I’ve had lead weights attached to my limbs all day and no matter how high I crank the heat up, I still feel like I’m sitting in a snow drift, and the toes, they haven’t recovered from the hours long submersion in the ice melt that had trickled into my boots while I was crawling down iced-in cave passage – see a picture of some tunnel in the area – here and here.
Check out this video that I’d taken – showing something of the Marmora area, and also this video that shows one of the places where water sinks underground beneath a shattered karst landscape – Ontario karst landscape here.