The villages flooded by the Luna reservoir Historical milestone · Los Barrios de Luna, La Montaña de Luna, León Image of Los Barrios de Luna, not of the place itself. The reservoir's first filling, on 15 June 1951, submerged sixteen villages, among them Láncara de Luna, San Pedro de Luna and Campo de Luna; the extreme drought of 2017 laid their ruins bare again. 1951 Photo: Fotosventana (CC BY-SA 3.0) What to see and do in Los Barrios de Luna