Church of Santo Tomás Apóstol de Joarilla Monument · Joarilla de las Matas, Sahagún, León The parish church of Joarilla de las Matas, head of a municipality of fifty-one square kilometres at 792 metres of altitude that divides its population among three settlements of the León cereal plain. Photo: Rodelar (CC BY-SA 4.0) What to see and do in Joarilla de las Matas