Fair of Ossa de Montiel Activity · Ossa de Montiel, Sierra de Alcaraz y Campo de Montiel, Albacete Image of Ossa de Montiel, not of the place itself. The Feria de Ossa de Montiel is the municipality's main festival, the leading summer event at this gateway to the Ruidera lagoons. It is held from 16 to 20 August. Del 16 al 20 de agosto Photo: M.Peinado from Alcalá de Henares, España (CC BY 2.0) What to see and do in Ossa de Montiel