A tank and a half of fuel in the brush cutter, a couple of hours of work, and a burn barrel later I have a clean drainage ditch.
For the first time since we got here.
This has never been kept since before we moved in.
And now it’s all good!
It took six or seven loads of crap the full-sized pickup and another hour or two to burn it all. But it’s all cleared away now. All that’s left is maybe a cubic foot or two of ashes.