The Lord of the Rings: Return to Moria

In order to craft Durin's Axe, you must first find all 5 fragments scattered throughout the map.
While the playthroughs and maps are slightly different for everyone, there is at least the certainty that there is a fragment to be found BEFORE you enter the Elven Quarter, and there is a fragment located inside the area where you fight Bolgakh.
Others can comment on where they found fragments to see if it will help, but hopefully you will come across them throughout your playthrough and will have no problem crafting the Axe when it comes time to progress the story.
The crafting recipe calls for: 3 Durinul Iron Ingots, 3 Sun-stone, 4 Ironwood, 1 Fine Leather
Durinul Iron Ingots are crafted using a Salt Bath inside of a base, and Durin's Axe can only be crafted using Durin's Forge (same with the Durin set of armor).

I created a spreadsheet for all of your crafting needs relating to these achievements, you can find it here:
https://docs.google.com/spreadsheets/d/1si3bLcfSIAHERw4jxu3T...