Sasabe, Sonora, located in the middle of the Sonoran Desert, is the sending point for thousands of migrants who cross the deadly sands leading into Tucson and beyond.

Nearby are two well-known sites owned by the U.S. government, both of which have become heavily trafficked migrant routes: Buenos Aires National Wildlife Refuge and the Tohono O'ohdam Indian Reservation.

Migrants and their coyotes use these areas mostly because they are remote and sparsely populated, but the rough open country there also makes the routes the most dangerous.

Despite the efforts of organizations such as No More Deaths, Humane Borders, and The Samaritans (all Tucson-based) that regularly tend water stations in the desert in order to prevent senseless deaths, hundreds of migrants die in the Sonoran Desert every year.

Each May, the Human Rights Coalition in Tucson leads a "Migrant Walk" dedicated to the memory of more than 3000 children, women, and men who have died trying to make it into the U.S. in the last ten years.

The official causes of death are dehydration, heat stroke and other physical traumas, but the true causes in so many cases are the love of family members and a willingness to make sacrifices for them.