This study area is a forest fragment of just over 860 ha, located in the municipality of Senador Guiomard, on the banks of BR 364, 27 km from Rio Branco, close to its confluence with BR 317, Estrada do Pacífico, and has a strategic importance for studies on biodiversity in Acre, as it is one of the areas where long-term studies are carried out, started in the late 1980s and early 1990s. The area is under the responsibility of the Center for Biological Sciences and Nature, has accommodation at the entrance to the site, with four bedrooms (three beds in each), two bathrooms (additional external showers), kitchen, living room and an auditorium with capacity for 30 people. A well maintained 3 km long extension gives access to an advanced accommodation with energy, rural telephony, two bedrooms (two beds in each), large living room, kitchen with pantry, a bathroom and a balcony around the building, where they can be sleeping nets installed.