Buenos Aires' graticule in Argentina is at latitude -35, longitude -58. It encompasses the whole metropolitan area, some sattelite cities (Campana, Gral. Rodríguez, Pilar, Capilla del Señor, San Vicente), the northwest of the Greater La Plata, a portion of the Delta, some country area, some water (La Plata River) and even some of Uruguay's land.
2008-05-21
This day's coordinates (2008-05-21) fall into the water: Paraná de las Palmas River, just a few Km from Campana.