This study aimed to let people recognize lecture halls and to investigate the short history of Go un Choi Chi -won, an object of enshrinement , to examine the location environments, establishment background and meaning of Jacheondae, Oksan Lecture Hall , Munchang Lecture Hall and Yeomui Lecture Hall located in Gunsan area in Jeollabuk-do. The results concerning the facilities of the said historic sites and the arrangement of trees could be summarized as below. 1. Goun was a person from Silla and studied in Tang Dynasty when he was 12 (in 868) and passed the state examination in 6 years when he was 18 and became a Jinsa (進士) so that people were very surprised at his smartness. At the age of 20, he became a Yunam Jeoldosa (桂南 節度使: military officer) in China and commander in chief of eastem section and was in charge of documentation duties. At that time, the insurgent Hwangso rebelled against the country and Goun became famous for putting down the rebel as a Dochonggyeonggwan (都統警官) . 2. Among 12 remains related to Goun distributed in Jeollabuk-do , 1 pavilion and 3 lecture halls including Jacheondae, Oksan Lecture Hall , Munchang Lecture Hall and Yeomui Lecture Hall in Gunsan’s Okgu area and Jacheondae and Munchang Le cture Hall have been located in Okgu Hyanggyo and Oksan Lecture Hall has been on the right side of Okgu Hyanggyo flanked by a wall. Amogn them, Jacheondae was the place where Choi Chi-won read books when he followed his father who was appointed in Naecho-do as a military officer of Silla during his childhood. Meanwhile， Munchang Lecture Hall, Oksan Lecture Hall and Yeomui Lecture Hall were f ounded by regional Confucian scholars in the reign of Sukjong in Joseon Dynasty (in the heyday of Confucianism) to follow the thought of loyalty and filial piety and lofty knowledge of Choi Chi -won. There many regional competent scholars have been brought up and they have played a large role in doing religious services for ancient sages and in maintaining the Confucian community order. 3. Jacheondae in Okgu-eup was actually located on a hill at Seonyeon-ri and three lecture halls were situated in the flat village with low mountains and they were surrounded by private houses. In terrns of buildings and main planting species, in Munchang Lecture Hall , inner Samun and shrines were arranged in a row. Meanwhile, inner Samun, outer Samun and space for religious services were arranged in a row and education space and managerial sector were in symmetrical form and the space for religious S8rvices was arranged in a rear(a form of building arrangement of Humyojeonhak ) in Oksan Lecture Hall and Yeomui Lecture Hall. In addition, crape myrtle was unique as a planting species and they were planted in symmetrical form in education space and space for religious services