Stronghold with Massive Abandoned Mineshaft

Seed: 734603810312601504
Coordinates: -18 67 262
Biomes: Plains, Ice Plains

You will spawn about a thousand blocks away from a frozen river that hides an entire stronghold underneath the soil at 412 80 -1259.It seems just a long trip, but it worth anyway. There will be a chest inside the stronghold contain:

• 1 diamond horse armor
• 3 gold ingots
• 1 ender pearl

The portal to the netherworld located at 380 26 -1245. The stronghold itself  have some tunnels that can lead you out to the massive abandoned mineshaft that is connected to a few other smaller mineshafts. It contains a lot of  minerals.