I came across this video of Charles Lefevre making a presentation for the Tree School Online on Commercial Truffle Cultivation in Western Oregon. This is a good introduction to truffle farming and the marketability of Oregon Truffles.
Hey Fabrice, thanks for sharing. That was really informative for me. I liked the map showing all the productive truffieres in North America. Also, the idea of finding truffles growing on lower branches seems very interesting, but I imagine that is quite rare.