Yeah very true, but it's not there now and hasn't been for a good while.
When I went in there it was still being mined, although not very actively,and we just went for a day trip. The yellow bikes were our means of transport and the 28k trip (each way) took only 1.5hours on the way out.
The bridge was slippery and had some cracks and holes in the deck so we wheeled the bikes over with both helping with each bike. Twas a big adventure at the time.
ff
If you don't know what I'm talking about, then you need to drink more.