Olleros is a station on Line D of the Buenos Aires Underground. The station was opened on 31 May 1997 as part of the extension of the line from Ministro Carranza to José Hernández.
Wikipedia https://en.wikipedia.org/wiki/Olleros_(Buenos_Aires_Underground)
Address 728 Avenida Cabildo, Ciudad Autónoma de Buenos Aires C1426AAU, Argentina
Coordinates -34°34'12.91" N -58°26'39.699" E