Situated south of Quezon Memorial Park, in its vicinity stands Mount Carmel College. Baler’s patron saint is San Luis Obispo de Tolosa. The church is built largely of stones and bricks. This was the old historically famous garrison during the Spanish regime and the last pocket of resistance of the Spanish armed forces to surrender to the American Troops. It existed until the end of 1939 when the foundation of the new church was laid as the old church was almost eroding and falling into pieces.
The present church was built through the initiative of the late President Quezon’s wife Doña Aurora, their family and friends with the cooperative effort of the townspeople. The church was proclaimed as one of the historical landmarks of the Philippines by the National Historical Institute on February 29, 2000.