The rain started pouring down an hour ago and hadn’t let up as the group approached the suspension footbridge. They had been traveling on foot for two days and were now deep inside Cotapata Park near Charobamba. Mateo Espinoza knew this end of Bolivia’s Yungas like the back of his hand. He was only forty five but still it seemed that hiking in these mountains was a lot more difficult than it was ten years ago. He hated making this journey but felt compelled to do it. There were sometimes people in his community whose lives he valued more than his own. For these people, he would make the trip without complaining.