Janggyeongsa (長慶寺) is inside the fortress walls, about 500m east of the East Gate. The temple, which been designated a "cultural property material" of Gyeonggi Province, includes a main hall, temple office, shrine to the mountain spirit, bell tower, pagoda and two residential halls for monks. All ten temples that were once part of Namhan Mountain Fortress were destroyed, but Temple Janggyeongsa, less so than the others and today offers a partial glimpse at what it once looked like. Rhododendrons thrive behind the temple compound, and mushrooms grow in the old pine groves. A wonderful view of the various temple sites can be seen from a lookout south of Jinnamnu.