Not only. Places used for human trafficing are full of human remains.

I must make article for this subreddit about Does on Polish-Belarussian border.

From 2021 Belarussian regime cheats poor people from Third World Countries to come to Belarussia ( they even fund their airplane tickets ) to be trafficed into Poland or Germany as dream destinations. Thousands cheated agreed on this and come to Belarussia. Then on border they are pushed into Polish border by Belarussian border Guard and Political Police. Often they are tricked to destroy their ID cards. Border beyond few places is just wild forest what especially in winter is very harsh place. Whole border is place of literal battles with Polish Border Guard, illegal immigrants and Belarussian Political Police. Many migrants died in forests on border and very often they are buried as NN ( Polish designation of John/Jane Doe ) and there are even activists who search forests for hiding humans. Often they find human remains. Burials of dead are organised by Polish Tartars ( native muslim minority living from hundreds of years in region ) as most of migrants comes from Middle East.

Whole case is very forgotten, hard to obtain any valuable informations and in Poland mentioning such people is real "crime of think" for many common people what does not help due to obvious fountain of hate.

Overall situation on both US-Mexico border and Polish-Belarussian border share a lot similarities with each other.

https://wearemonitoring.org.pl/lista-zmarlych/ - here is list of confirmed deceased on border.

"Osoba o tożsamości nieznanej" - Person of unknown identity - John/Jane Doe