The braña of La Matanza Nature · Cobreros, Sanabria, Zamora Image of Cobreros, not of the place itself. This high pasture gathers each year, between May and September, hundreds of head of cattle from the villages of the municipality, in a short transhumance that still structures the livestock life of the municipal district. Photo: Suzusan78 (CC BY-SA 3.0) What to see and do in Cobreros