Festivities of la Muela Activity · La Muela, Valdejalón, Zaragoza Image of La Muela, not of the place itself. Festivities of La Muela spread through the year: San Babil on 24 January, the pilgrimage of the Virgen de la Sagrada to Monzalbarba on the first Sunday of May, San Antonio on 13 June, and San Clemente, patron of the parish church, on 23 November. Photo: Zarateman (CC0) What to see and do in La Muela