My mate Gary has set up a forge on a patch of land we own and where we have planted quite a lot of interesting species of tree.
Mulberry, Liquidambar, Walnut and Stone Pine to name but a few.
Its good fun beating pieces of red hot steel into useful shapes. Thirsty work. Blacksmiths must have been big drinkers. Most modern blacksmiths make gates or 'art' pieces. Rare to find one now who will make certain specific tools and know how to temper them so they hold an edge. So ultimately you have to learn how to do it yourself.