Explore details about location Carrera 57C. Carrera 57C is a location situated within the Barrios Unidos alongside other areas such as Avenida General Santander;Carrera 24, Carrera 49A, Avenida NQS - Ciudad de Quito - Carrera 30. Additionally, some smaller parts of Carrera 57C include specific areas like Carrera 62 adding to the diversity of its landscape.