Original Channel Tunnel Line in UK

[n2cbo]

I am new to this forum (and I am also from "across the pond") I just viewed Video 125's Drivers Eye View of the Eurostar and they mentioned that at Swanley there was a junction with the "Original Channel Tunnel Line". What line is this, and where did it junction with the Channel Tunnel Line?

Please forgive me if I am using some "American English" as I am not too familiar with all of the "Correct" terms to use here

 

[Geezertronic]

I presume this means the link into Waterloo International? If so, the Wikipedia link below shows a map of where the Eurostars ran before HS1 and St Pancras International

http://en.wikipedia.org/wiki/Waterloo_International_railway_station

 

[ChrisCooper]

When the Channel Tunnel first opened trains used to use the conventional line all the way to Dollands Moor Yard near Folkstone, but when the Channel Tunnel Rail link opened they used that as far as Fawkham Junction before joining the conventional network to Waterloo. Swanley is the junction between the original route to the tunnel and the route once the CTRL was built. These days trains use HS1 all the way to St Pancras.