Explore details about location Retorno No. 1. Retorno No. 1 is a location situated within the Bello alongside other areas such as Calle 20 E, Avenida Regional, Salida a Medellín/Carrera 52 y Bello/Carrera 45. Additionally, some smaller parts of Retorno No. 1 include specific areas like Carrera 45 adding to the diversity of its landscape.