Fazenda Muralha Airstrip (ICAO: SD1S) is a small private airstrip located in the municipality of Chupinguaia, in the state of Rondônia, Brazil. It serves agricultural and ranch operations associated with the Fazenda Muralha property, providing essential air access to a region with limited road infrastructure. Like many fazenda (farm or ranch) airstrips in the Brazilian interior, it is not open to the general public and primarily supports private aviation, cargo transport, and agricultural activities. Its existence reflects the critical role that small private airstrips play in connecting remote rural areas of the Amazon region to larger urban centers.