Century-old elm of Nuevo Baztán Nature · Nuevo Baztán, Cuenca del Henares, Madrid An Ulmus minor some three hundred years old, a survivor both of the row of elms with which Churriguera finished off the approach to the settlement and of the Dutch elm disease that wiped out the species in Spain; it is listed in the Region of Madrid's inventory of notable trees. Photo: Raimundo Pastor (CC BY-SA 4.0) What to see and do in Nuevo Baztán