In Spanish cooking a ceramic roaster known as "olla de barro" is used. Among the cooked include the olla gitana, cocido murciano con pelotas, mondongo, etc. The wolves-and-pot (lobos y olla) are a pun on the family name Loyola. An olla jar has a slightly flattened rim and a marked angle at the shoulder. The Town of Olla is the oldest incorporated town in LaSalle Parish. The evaporation of the sweat cools the "olla" and its contents. The "olla" is also useful for keeping water cool. He holds his mallet in his right hand and an "olla" in his left. The test plot used 1.25 gallons per olla every four days. He holds his mallet in his right hand and an olla in his left. Mr. G.W. McCartney purchased a dynamo to bring electric lights to Olla. This fountain once provided area residents with potable water from the Olla Dam.