[KegRiver]

I have never found more then a half dozen Morals in any one year, but I only recently learned about the effects of forest fires on these mushrooms.

So I'm wondering, I know the first year after a burn is the best but how long does the effect last?
Is it one year only or does it last for more then one year? Does each years harvest drop and if so by how much. In other words, how many years is the picking worth the effort?

I have no burns in my area but I will be going through burn areas in my travels throughout the spring.