Embalse de Orellana a su paso por Casas de Don Pedro Nature · Casas de Don Pedro, La Siberia, Badajoz Image of Casas de Don Pedro, not of the place itself. The Guadiana river, held back in the Orellana reservoir, marks the southern boundary of the municipal term of Casas de Don Pedro, alongside the Sierra de la Chimenea. Photo: Adolfobrigido (CC BY-SA 4.0) What to see and do in Casas de Don Pedro