Monitoring of the Andean Amazon Project (MAAP) discovered a sharp deforestation increase in the lower Las Piedras River area, which is in the far west Amazon rainforest of the Madre de Dios region of Southern Peru. This area is considered as an incredibly biodiverse area. The headwater of Las Piedras River is protected, however, the lower remains under threat largely due to the controversial Trans-Amazon highway, which brought loggers, hunters, gold miners, and settlers.