Flagpole supports are a pair of stone pillars that fastened a flagpole in place. Such flagpoles were used to mark Buddhist temple precincts by flying flags or to celebrate special events and large gatherings by hanging banners.
These flagpole supports, located around 500 m to the south of Namgansa Temple Site, are presumed to date to the middle of the Unified Silla period (668-935). The two pillars stand 70 cm apart on an east-west axis. They have a simple design without decoration. On the sides of each pillar, there are two rectangular holes, and on the top, there is a groove. Metal belts were inserted into these holes and grooves to secure the erected flagpole. The groove on the top is shaped like a cross, which is unlike typical flagpole supports which have just a single straight groove.