At the bottom of Lower Steilhang, just where you turn right to go towards the lift there is a little shack on the skiers left and a trail / road along side of it. It is is hard to see since one is typically facing the other way trying to go fast over the flats. I remember someone telling me that this was the top of an old lift (a t-bar or rope tow perhaps). This may be what they are referring to in Wikipedia.
On a related note there was once a lower, Lower Steilhang. i was once at Gore as a teenager in the early 70's and skied it. If you look on your right just after you get on the High Peaks chair you can see that the trees are a little smaller and younger looking where the trail was. it was obvious several years ago but now it is getting pretty filled in.
We could probably have an interesting thread on abandoned trails at Gore. Anyone remember the trail that goes into Wood In to the right of the North chair, i think it was called Little Star or something like that.