Colniza

Colniza is a municipality in the state of Mato Grosso, Brazil.

Demographics
Colniza has the highest homicide rate in Brazil with 165 deaths per year per 100 thousand inhabitants. It is the westernmost and largest (by area) municipality of the state.

Conservation
The municipality of Colniza has a mosaic of conservation units consisting of the Rio Madeirinha Ecological Station, the Rio Roosevelt Ecological Station, the Tucumã State Park and the Guariba-Roosevelt Extractive Reserve.

Satellite monitoring showed that Colniza had the highest level of deforestation in Mato Grosso in the six years from 2010 to 2016, with 78556 ha cleared, most of it illegally. Rates of deforestation rose successively in 2013, 2014 and 2015.

The 13683 ha Rio Madeirinha Ecological Station is a fully protected environmental unit created in 1997. The 96925 ha Rio Roosevelt Ecological Station is a strictly protected conservation unit created in 1997. The 164224 ha Guariba-Roosevelt Extractive Reserve is a sustainable use unit created in 1996. The municipality also contains 3641 ha of the Campos Amazônicos National Park, a 961318 ha protected area created in 2006 that protects an unusual enclave of cerrado vegetation in the Amazon rainforest. It contains 44% of the 227817 ha Igarapés do Juruena State Park, created in 2002.