District and Madrid district of the southeastern zone located in turning to an ancient homonymous village. Here next to the Hill of Almodovar, witness Hill is the largest site of sepiolite and the military uprising of the Vicalvarada against the Government of Isabel II began the summer of 1854. The name derives from vicus Alvar, a fifth of a Castilian nobleman of the past or perhaps vicus albus, White Earth place, by the numerous deposits of gypsum in the area.