I've heard conflicting things. IIRC, West Coast burnsite morels are a different species than we have in the East, though they physically resemble M. angusticeps. But, I have also read reports of people finding good amounts in East Coast burn sites.
I plan to check a local site that burned recently next spring, and of course I'll report here.
I plan to check a local site that burned recently next spring, and of course I'll report here.