What is "castrolanda"

One of the towns of Castro is Castrolanda. Castrolanda is a colony that was founded by Dutch immigrants between 1951 and 1954. Its economy is based on agricultural production and dairy farming which is one of the most important in this region that is considered the largest dairy in Brazil due to their genetic quality. It has a considerable production of grain, mostly soy and beans. Also having one of the largest agricultural cooperatives in Brazil, which bears the name of the colony.