Wikipedia
Daegwallyeong is a mountain pass in the Taebaek Mountains of eastern South Korea. It runs between Pyeongchang and Gangneung in Gangwon Province. It rises to above sea level. It is an important historical pass that connects the regions of Yeongseo and Yeongdong. Daegwallyeong-myeon of Pyeongchang County is named after this pass. Daegwallyeong Museum is located in Gangneung.
That way was used for delivering agricultural and marine products from Gangneung to Yeongseo.
Also Seonbie who is scholars in the Joseon Dynasty walked over this way to go to Hanyang (then Capital City of the Joseon Dynasty) is where to take Gwageo (the highest-level state examination to recruit ranking officials for the Joseon Dynasty) examination.
The Old Daegwallyeong way used to be one of the sections of Yeongdong Highway. The highway has been turned into a local road, which helped reduce the traffic along the way. Walking or driving along the way offers a peaceful experience with spectacular views. The Old Daegwallyeong way is 19.1km long. In the middle of the way, there is a divided way into a route that goes down all the way (1hr 50min), and another route that goes up to Daegwallyeong Museum or Gamagol Village (2hrs 20min). The pass is an easy walk, which makes a great weekend getaway.