Address : 287, Taejong-ro, Gangnim-myeon, Hoengseong-gun, Gangwon-do
Taejongdae is located right above the ticket office of Mt. Chiak National Park in Gangnim-myeon and this place has a story about King Taejong of Joseong Dynasty and his mentor, Woongok Won Cheon-seok. Woongok Won Cheon-seok who was regarded as one of the 4 Righteous Men during the late Goryeo Dynasty period was the mentor to King Taejong or Lee Bang-won of Joseon Dynasty. When Taejo brought down Goryeo Dynasty and founded Joseon Dynasty and his sons later fought viciously over the throne, Woongok was so devastated and mad he refused to take a post, left the capital and resided here in Gangnim-ri. In 1415, taking the throne, Lee Bang-won, the fifth son of King Taejo, visited here to meet his old mentor Woongok, put Woongok back to his post and discuss politics.
Woongok was so upright and loyal to the fallen Goreyo Dynasty that he avoided meeting Lee Bang-won and hid in a valley of Mt. Chiak. Woongok knew Lee Bang-won was coming so he told an old man washing clothes by a stream to tell that he went to Hoengjiam to anyone who is looking for him and he himself headed to the opposite direction. Lee Bang-won looked for Woongok around Hoengjiam but failed to find Woongok. At that time, Lee stayed at a place called 'Joopildae' and when Lee later took the throne and became King Taejong, 'Joopildae' was renamed to 'Taejongdae'.
Later, when King Taejong called Woongok again, Woongok couldn't refuse the king's order so he came into the palace but in a mourning attire to silently protest about King Taejong's inhuman slaughtering of other princes in taking the throne. The old man who had lied to Lee Bang-won found out that Lee became the king, felt so guilty that he took his own life by throwing himself over a cliff into a pond. This pond was later named 'Nogoso' and the villagers held a memorial service for this old man every year. Nearby, there is also a mountain called 'Baehyang' which Lee Bang-won bowed to paying respect for the mentor he couldn't find and a hill named 'Suraenuhmi' which the king's carriage once passed by. And in a deep valley of Mt. Chiak, there is a place called 'Byeonam' which Woongok stayed at keeping his unwavering loyalty to Goryeon Dynasty.