Head through the portal in SE PP. Then head to the area to the east. Go past the spiders and the wolves. There is a small building with 2 dwarves guarding a ladder. To get to the iron area mine WNW to the path then SE to the path and then you'll find the iron. Watch for ladders in gold/emerald, the dwarves in those ladder areas drop ore. Be careful if you enter the sea, there is a spawn trap that produces some bigger dwarves. The ladder in the water has fake traps, I walk straight north since I know for sure it is safe. The Lord in that area drops two ores but can be beastly.