Fazenda Vale da Serra Airport is a small private airstrip located near Mucajaí, in the state of Roraima, northern Brazil. Identified by the ICAO code SIG6, it serves agricultural and private aviation purposes typical of fazenda (farm) airstrips in the Amazon region. Such airstrips are common in Brazil's interior, providing essential air access to remote rural properties where road infrastructure is limited or unreliable. The airstrip is not open to scheduled commercial traffic.