Gamaksan is one of five great mountains of the Gyeonggi region, and according to legend, its name means a dark blue-colored rocky mountain whose rocks emanated black and blue lights at the same time. The suspension bridge located at the starting point of the Gamaksan Trail connects Seolmari Valley, which had been severed by a road, to make Gamaksan into a single mountain again. It is 150 meters long, which makes it the nation's longest bridge tower-less suspension bridge, and was constructed to ...