The referendums on annexation to Álava Historical milestone · Condado de Treviño, Ebro, Burgos Image of Condado de Treviño, not of the place itself. The enclave has voted twice on its integration into Álava: in 1940 98 per cent came out in favour and in the non-binding consultation of 1998 68 per cent did so, without either having had any administrative effect. 1998 Photo: Basotxerri (CC BY-SA 4.0) What to see and do in Condado de Treviño