Fazenda Quatro Irmãos Airstrip (ICAO: SJ2M) is a private general aviation airstrip located in the municipality of Novo Progresso in the state of Pará, Brazil. It serves the agricultural and ranching operations of the Fazenda Quatro Irmãos (Four Brothers Farm) and surrounding rural properties in this remote Amazonian region. The airstrip supports light aircraft operations typical of Brazil's interior farm strips, providing essential access to an area where road infrastructure is limited and distances to urban centers are vast. It holds no IATA code and does not serve scheduled commercial passenger flights.