im 65 live in deep south havent seen a dirt road in 30 years we used to have them everywhere then our population grew by 40% ( from outsiders mainly city people ) first thing they did is paved all gravel and dirt roads and turned farm land into subdivisons and high dollor homes and if they see someone liveing country way haveing fun they calling the police its so bad there was no place to go mudding ( we used to have around 20 places ) anyway a friend had 20 acers he decided not to farm any more half was woods and low land so it stayed muddy and he said go mudding any time you want that lasted 2 weeks untill city people started crying mud was falling off our trucks on the road as we got on the paved black top and had the police fine anyone with a muddy truck said we were creating a road hazard / mudding and rideing back roads use to be a way of life STOP BIG CITYING MY COUNTRY LIFE
I don't know about nastiest that's kind of what the swamp does and there's 10000 of them in Southern Michigan. Nastiest don't think so , they all do the same thing
