>>2833374Where you find one amanita, you'll likely find more. They're mycorrhizal, so if you're near a bunch of trees they like, there's probably a well established mycelial network there. I'm not familiar with a. frostiana, but according to iNaturalist, you're in the right location for it. It looks like it's almost exclusively around the great lakes region. If you were anywhere else, I'd have said it was a. flavoconia.
I'm reading as I'm posting this just FYI....
The flaking, persistent ring of volval material around the stipe also points to frostiana. Otherwise, it looks like you'd want to look at the spores under a microscope to 100% confirm it. A. flavoconia has ellipsoid, amyloid spores, whereas a. frostiana has round, non-amyloid spores.
