Guajará-Mirim is a municipality in the Brazilian state of Rondônia. It is located at an altitude of 128 meters. Its population was 46,556 (2020) and its area is 24,856 km². Location Guajará-Mirim lies along the Mamoré River, just across the Bolivian border town of Guayaramerín. It was once the southern terminus of the Estrada de Ferro Madeira-Mamoré (the Madeira-Mamoré Railway), which was inaugurated in 1912. It is the seat of the Roman Catholic Diocese of Guajará-Mirim. Conservation The municipality contains the Traçadal Biological Reserve, a strictly protected area that was created in 1990. It contains 2.33% of the Guajará-Mirim State Park, created in 1990. It contains the Rio Ouro Preto Biological Reserve, created in 1990. It contains 73.45% of the Rio Ouro Preto Extractive Reserve, also created in 1990. The municipality contains 47.5% of the Rio Cautário State Extractive Reserve, created in 1995. It contains the Rio Cautário Federal Extractive Reserve, created in 2001. References Sources Municipalities in Rondônia