Pretty much yes.
There is a tendency for more moss and lichens to grow on trees north sides because it tends to be a wetter environment so they can more easily grow there. This is, in some old books, touted as a pathfinding skill. However I've found it to be wildly unreliable because in some micro climates the south side of the trees are more protected and the moss and lichens grow better there.
Side note, we've been collecting lichens for dye stock (for wool dying) and found this book to be super useful for identifying lichens in our area - I'm not sure if there are similar books for other regions of the country though.