This was our third weekend of digging in the cave we call The Toothtube. We suspected that there was a tunnel entrance in a blind valley and in digging in a likely spot this tunnel was broken open. Glacial clay filled the sealed passages to within about a foot of the roof, but with bucket and garden claw we persevered.
Admittedly its nice to open up a passage but our real goal is to intercept the main branch tunnels that we know must lie beneath. It only stands to reason that there must be some huge underground rivers in this area, all the features point in that direction – in particular some impressive shafts that are partly filled with soil, the lack of surface resurgences, the thickness of the local bedding planes and other nearby tunnel systems that stretch beyond the ability of humans to explore them. This lower level if dug out might provide an eventual connection to this main trunk drain.
See the video on today’s efforts and the downward sloping conduit that we found – video for Ontario cave passage here.