Aberdeen Proving Grounds in Maryland has many square miles of land with unknown amounts of unexploded ordnance. It’s an Army base where they develop and test all sorts of stuff. I live nearby and the house shakes and rattles often when they blow stuff up.
If an explosive starts a grass fire, no matter the size, if a water cannon can’t reach it, the do air drops. No one but no one walks there.
Same here at Eglin Air Force Base. They find old bombs here all the time from WWII and before.
A friend of mine was a bulldozer driver on a construction site in Destin years ago and hit an old WWII bomb while clearing some land for a project.................