Dangerous Ontario cave
The thing with Marmora is that you need to get a feeling for the sinking and resurging channels. Here we are walking up a section of stream bed where the water resurges strongly in the spring from a blind valley. The valley is fed by a number of tunnels. At this time it is possible to explore the tunnels as they are mostly dry but when the water is high – no chance.
The Marmora Maze caves switch back and forth beneath a low escarpment somewhere off in the bush. Josh (my son) and I, had long suspected the existence of tunnels there and one Saturday morning we dug away the debris beneath a joint to open a passage into the maze caves.
The Marmora Maze cave consists of tunnels that have only been explored a little in either direction, both up and down stream. It would seem that the tunnels upstream are low and trough-like beneath a rocky shelf, while down stream there are deeper trench-like passages.
The rock of the area is the Bobcaygeon Formation – rich in fossils, namely some pretty sizeable cephalopods. A couple of years ago we had visited the area with some Russian cavers and one happened to be a specialist in Cephalopds. A cephalopod is like an ice cream cone in appearance, chambered through the cone and with tentacles coming out of the top of the cone.
The entrance to the Maze Caves looked pretty unstable today, a good bump will likely to bring several tons of rock down on your head. I think the entrance needs re-digging before anyone enters there again.