I have found that when I am up North a combination of Ash and Eastern Hemlock are a go to combination. I Do not know if it is that tree combination? It is usually in a very dark part of the woods. It may be that the conditions are best for those trees and Morels to grow? As always I have more questions than answers. I say we pool our money together and hire a Morel Whisperer. They have them for dogs and horses so why not for Morel hunters?