Yongdoseochi (용도서치) is a turret west Of Yongdo. Yongdo is a passageway used by troops to watch for invaders. The path runs from Seonamammun (Southwestern Secret Gate) to Seonamgangnu (Southwestern Pavilion).
A chi is a section of the fortress that projects from the wall. Chi refers to a pheasant bird who has the ability to use camouflage to hide from the enemy.
These structures are placed along regular intervals along the wall of the fortress which were used to attack unsuspecting enemy troops from above. There are a total of ten found along the walls.
The location lies to the west of a hidden passageway that runs along Mount Paldalsan that was used for patrolling the nearby area.