Yanlin Song. Going to the Great Northern Wilderness:  A Scientific and Curriculum-Based Analysis of Premium Study-Tour Route Design under the “Hundred Routes, Hundred Courses” Initiative—— A Case Study of the Xingkai Lake Study-Tour Practice Education Camp Route in Mishan City, Heilongjiang Province. erstp [Internet]. 2026 May 31 [cited 2026 Jun. 9];2(2):42-7. Available from: http://ojs.iajournals.cn/index.php/erstp/article/view/354