Areia Branca Airstrip (ICAO: SIEW) is a small general aviation facility located near Novo Aripuanã, a municipality in the southern part of Amazonas state, Brazil. The airstrip serves as a vital link for communities in this remote area of the Amazon basin, where river and air transport are the primary means of access. Novo Aripuanã sits at the confluence of the Aripuanã and Madeira rivers, and the surrounding region is characterized by dense tropical rainforest. Small airstrips like Areia Branca play an essential role in providing access to medical services, supplies, and connectivity for local and indigenous communities. The facility is typical of remote Amazonian airstrips, likely featuring a single unpaved or grass runway and minimal infrastructure. It does not hold an IATA code, reflecting its status as a small, non-commercial aerodrome.