Aller dialect Curiosity · Aller, Caudal, Asturias Image of Aller, not of the place itself. A variety of central Asturian spoken above all in the upper valley, characterised by the so-called che vaqueira and by phenomena of vowel metaphony that clearly set it apart from the speech of the neighbouring municipalities. Photo: RicharxAstur Aller (CC BY-SA 4.0) What to see and do in Aller