I love mushrooms as well, and here in mich, the morel is king.
i have a friend who's picked for years but i've never developed much "confidence" in identifying the edible from the poisonous!!
considering the remoteness of the park and the the potential for illness  if you eat the wrong mushroom, i would strongly caution anyone to make DAMN sure you know what your doing and maybe if your new  to it, have a veteran watch your back the first few times??
i think eating off the land is a great idea, but sometimes being overeager and not having experience can get you in trouble??
i've been told by my friend that even old timers occasionaly get a bad fungi and take ill?
in the parks, that would be a real bad thing to happen especially if you were solo!!