Fazenda São Pedro Airport is a small private airstrip located in or near Corumbiara, a municipality in the state of Rondônia in western Brazil. It operates under the ICAO identifier SNM4 and has no assigned IATA code, reflecting its status as a non-commercial, privately operated facility. The airport primarily serves agricultural and general aviation purposes, typical of fazenda (farm) airstrips in Brazil's interior. Such facilities support light aircraft operations for farm management, cargo transport of perishables, and access to remote areas with limited road infrastructure. Detailed operational data, including opening date, runway specifications, and ownership details, are not widely published in available aviation records.