I grew up in Nevada along a main highway that people take to burning man. I really wish "leave no trace" included places outside blackrock.

People would also routinely leave their playa covered and broken down vans, RVs and cars in my neighborhood. In the desert by my parent's house we would find numerous trailers abandoned full of trash, empty water bottles and old clothes. You knew it was from burning man because the stuff was covered in playa dust.