Nicolás García Uriburu was an Argentine artist, landscape architect, and ecologist. His work in land art was aimed at raising consciousness about environmental issues such as water pollution.

The Matanza River is a 64-kilometre (40 mi) stream in Argentina that originates in the Buenos Aires Province and defines the southern boundary of the Buenos Aires federal district. It empties into the Río de la Plata between Tandanor and Dock Sud. The La Boca neighbourhood and the Boca Juniors football club are located near the stream's mouth. The Spanish word boca means "mouth".