16 mineshaft near 0;0Minecraft 1.9 Seed
I Don't Know How This Happened.
Seed Code: 25214903905
X: 0 / Y: 0 / Z: 0
If you dig straight down, you will find a set of mineshaft like the ones at 107038380838084!!!
But these mineshafts are not infinite, they reach from 0x 0z up to -240x 0z approximately.