What is Tianchi Seventy in Changbai Mountain?

Does the questioner want to ask about "Seventy-two Bays of Tianchi in Changbai Mountain"? To climb Changbai Mountain, you need to pass through 72 bays. According to the official website of the Zhejiang Provincial Forestry Bureau, when climbing Changbai Mountain, you first take a scenic environmentally friendly vehicle to the main peak and change to an off-road vehicle. The vehicle drives on a zigzag winding mountain road with 72 turns throughout the journey. The vegetation on the roadside changes at any time. Finally, the vegetation disappeared, leaving only the vast mountains, majestic and broad, the mountains gradually became lower, and finally they were all thrown under the feet.