Infinite Mineshafts & Woodland Mansion

This is a truly cool seed which will bring forth you not a long way from a Woodland Mansion, but rather that isn't the best thing. The most fascinating part about this seed is that it incorporates an unbounded mineshaft. Keep perusing and you'll soon know precisely where to go to discover the endless mineshaft. It's in all probability not only one mineshaft, but rather numerous ones.

There is also a Woodland mansion. Just walk forward for around 200 blocks, & you will eventually find it.

Walk around the mansion until you find a giant brown mushroom. Dig down at the following coordinates: X: 345, Y: 65, Z: 302.

If you just want to go to the mine shafts from the get go, go to these coordinates: X: 10000, Y: 13, Z: 10000.

Mansion dungeon: X: 10000, Y: 13, Z: 10000.