RE:SEA TunnelsCountrygent, interesting that you see this as a positive for SEA due to Govt pressure. Without, I see SEA as a dead, landlocked project now. TC has now demonstrated it's authenticity, and the SEA tunnels are absolutely planned along the wrong (for them) route.
If I understand correctly, the tunnel route is essentially running along the Sulphurets Thrust Line, which is basically where the string of pearls seems to be. The southern TC pearl, Perfect Storm, will be an additional obstacle for the routes after the 2021 season. AND, I'm anticipating a northern pearl (or more) will further hinder any the route of the planned tunnel in the future.
It will be very difficult to mitigate a route through three or more deposits/mines. Perhaps, the tunnel will run below the deposits? I don't recall how deep the tunnels are; anyone? It would be also be a nighmare for SEA if the deeper you go, you happen to run into some feeder type rock. Now wouldn't that be interesting?