Stop in for a cup of coffee

2' deep and 20yds dia is big. 3ft deep and 90ft dia is kinda massive. LOL
I have less than an acre, so only allowed small pit fires, campfires etc. Burning brush fires etc is allowed if over 1 acre as 'agricultural burning'. If you can't get it burned might have to hire a crew with a chipper. I bought a little one (10hp) years ago. Works great, but I still end up with a brush pile down back cause I don't drag the chipper out every time.

Good Morning
Out here in the country side burning is burning and size doesn't matter....right Karl. The brush pile sits not far off a dirt road. I might borrow by neighbors tractor, and push it into smaller more manageable piles, and then burn them. Maybe like Pete suggested wait until we get a good snow then burn.