Ok my biggest tunnel yet is nearing completion running from ~ X = +983, Z = +1138 to the railhead at X = -364, Z = -19..... yeah, that's a shed load of blocks, even if you don't include the dog legs, rises, dips, etc!!
Looking at the advice given by Bart, this tunnel is 7 blocks wide x 3 blocks high
What I need to know now is the layout across the tunnel? There shouldn't be a problem with mobs below ground as there are torches on both walls on every other block. I don't know if I go past anyone else's base who may want to use part of the tunnel?
Should I come full width to the surface or just 2 or 3 wide?
I'm itching to start laying tracks so any advice would be appreciated.
Greboth, I know you're going to do the main terminus near the spawn so I'll just put a temporary platform etc there
Feedback per-leezz!