Casa Larriero is a rural tourism accommodation in the municipality of Ainsa, Sobrarbe region, province of Huesca (Spain), town of Olsón. These are two apartments, four places each, located in an old house fully rehabilitated and conditioned for the new times, respecting the external structure of the building, in harmony with the environment. Registration Details Spain - National registration number ESFCTUH0B222003000660214000000000000000000CR-HU-11846 Aragon - Regional registration number CR-HU-1184