From the sources of Silva Reformati copious flowing waters created an ideal habitat for the growth of centuries-old poplars. It has only remained one assessed among the monumental trees of Madonie Mountains Park. It is of an extraordinary size and is near the Museum 'U Parmintieddu. Its trunk is over 6 metres in circumference and it is 30 m in height. From the Museum to the Monastery you can take the staircase that exemplifies an old type of construction. Surrounded by white limestone chains its big steps are made from the discarded stones of buildings and nearby gardens.