Explore details about location Calle Antonio Machado;GR 99. Calle Antonio Machado;GR 99 is a location situated within the Utebo alongside other areas such as Calle Santiago, Calle La Coruña, Calle Zamora. Additionally, some smaller parts of Calle Antonio Machado;GR 99 include specific areas like Plaza Castilla adding to the diversity of its landscape.