Festivities of la Mata de los Olmos Activity · La Mata de los Olmos, Bajo Aragón, Teruel Image of La Mata de los Olmos, not of the place itself. La Mata de los Olmos, in the Teruel Bajo Aragón, belonged to the Order of Calatrava from when King Alfonso II granted it to them in 1179, a dominion it still held in 1414. Its current name has been in use since 1860. Photo: Xufanc (CC BY-SA 3.0) What to see and do in La Mata de los Olmos