Buy a gryphon to Ironforge from the gryphon master Thorgrum Borrelson, then bring Brock's List to Golnir Bouldertoe in Ironforge.
For just a few coins, one of my gryphons will take you to Ironforge. From there, deliver Brock's list to Golnir Bouldertoe. You'll find him in the Deep Mountain Mining Guild. That's in the Great Forge District of Ironforge, which is right where my gryphon will drop you off!
Speak to me again when you're ready for the journey.