Fazenda Vale da Pecuária Airport is a small private airstrip located near Arraias, in the state of Tocantins, Brazil. Designated with the ICAO code SI8X, it serves the agricultural operations of the fazenda (farm/ranch) for which it is named, providing air access to a region with limited road infrastructure. The airport is typical of many private rural airstrips in Brazil's interior, designed primarily to support the logistical needs of large landholdings engaged in cattle ranching and agriculture. It is not open to scheduled commercial air services and has no IATA code assigned.