The Purus National Forest is in the municipality of Pauini, Amazonas. It has an area of. It is on the left bank of the Purus River, downstream from Boca do Acre. The Inauini/Teuini Indigenous Territory to the north partly overlaps the national forest. It is bounded to the west by the Mapiá-Inauini National Forest. To the south it adjoins the Camicuã Indigeous Territory. It takes at least six hours to cover the road from Rio Branco to Boca do Acre, and the same length of time by boat on the Purus River and then the Mapia stream to reach the central village of Céu do Mapiá. This community in the forest is devoted to consecration of the shamanic-Christian syncretism of Santo Daime. During the dry season access is limited to the Purus River.
Environment
Average temperatures range from. Rainfall is from annually. Rain mostly falls in the months of October to April, while the driest season is from June to August. The topography is a plateau with hills and flat areas dissected by deep valleys. The alluvial areas that are flooded by the Purus River are relatively fertile due to sediments from the Andes. However, most of the soils are very poor and acidic. The vegetation is entirely dense rainforest. In the higher terra firma areas and the valley slopes the canopy reaches. The main tree species are Dinizia excelsa, Manilkara huberi, Anacardium species, Parkia pendula and Bertholletia excelsa. In the várzea forest along the Mapiá stream the canopy is typically high. The Mapiá is densely occupied, with many areas of deforestation along its course. In general the area beyond the village of Céu do Mapiá and the Teuini stream is well-preserved.
History
The Purus National Forest was created by federal decree 96.190 of 21 June 1988, with an estimated area of. It is administered by the Chico Mendes Institute for Biodiversity Conservation. The forest is classed as IUCN protected area category VI. The purpose is sustainable multiple use of forest resources, and scientific research with emphasis on methods for sustainable exploitation of native forests. On 26 September 2005 the Instituto Nacional de Colonização e Reforma Agrária recognised the forest as supporting 200 families of small producers, who would qualify for PRONAF support. This was amended to 300 families on 31 December 2008. The management plan was approved on 18 March 2009. The consultative council was created on 10 March 2010.