Hacienda Santa Maria located in barrio in Indiera Alta of Maricao, was established ca. 1880 by Corsican imigrant Luis Natali Pietri (1846-1930) who arrived in Puerto Rico in 1872. The book Corsos de Puerto Rico published by the Puerto Rico Association of Corsicans, states that between 1910 and 1930 Luis Natali Pietri was owner of several coffee plantations in Barrio Indiera Alta; Hacienda Santa Maria, Hacienda La Fortuna, Hacienda La Florita, Hacienda Los Sapos and Hacienda Maria Antonia in Barrio Aguas Blancas of Yauco.

Luis Natali Pietri had children from a relationship with Juana Portalatina Ruiz Garcia. From his marriage to Juana Lartigaut Mignucci (1868-1892) were born Delia and Juan and from his marriage to Ana Maria Bartolomei Giuliani (1872-1946) in 1893 were born Francisco, Maria (1976), Ana ( -1992), Luisa, Elena ( -1997), Benedicta and Antonio Eugenio. Archeologist Luis Pumarada O'Neil states in this facebook page that after the death of Luis Natali Pietri's daughters, the estate was abandoned. It appears none of his children worked the plantation after his death although the 1917 military registration card of his son Luis Natali Ruiz (1880- ) states he worked at the plantation with his father. After Natali Pietri’s death in 1930 ownership and continuation of the hacienda as a coffee plantation is uncertain but not likely, it seems indeed the plantation was then abandoned.  Some sources state it never again operated as a coffee plantation.

The Manor House which was built ca. 1890 is a one story wooden house separated from the machinery house which is a few kilometers away. It is an atypical coffee plantation house with a hipped roof and large balcony.  ​The pictures below are part of a 1987 study by Archeologist Dr. Luis Pumarada O'Neill, source: Puerto Rico State Historic Preservation Office.

It is located at coordinates 18.13995, -66.8625 on the north side off of PR-374.  A current Google Earth view shows the manor house is still standing albeit in the midst of a densely forested area.