Core Viewpoint - The transformation of the mining town of Yanshan into a cultural heritage site is highlighted, showcasing its historical significance and the ongoing efforts to preserve its industrial heritage while promoting tourism and local culture [6][8][12]. Group 1: Historical Significance - Yanshan is known for its rich deposits of alum, with reserves accounting for approximately 60% of the world's total and 80% of China's [6]. - The town has a 600-year history of alum mining and processing, earning it the title of "World Alum Capital" [6][7]. - The last group of miners left the mines in October 2017, marking the end of an era for the local mining industry [6]. Group 2: Cultural Heritage and Preservation Efforts - The town has been recognized as a "Chinese Historical and Cultural Village," and its alum sculpture technique is listed as a non-material cultural heritage of Zhejiang Province [8]. - Efforts to apply for industrial heritage status began in 2012, leading to the establishment of policies for the protection of alum mining sites and historical buildings [7][8]. - In 2017, the Wenzhou alum mine was designated as one of the first national industrial heritage sites [11]. Group 3: Tourism Development - The mining village of Fudewan has become a popular tourist destination, showcasing the lifestyle of former miners and preserving historical architecture [13][14]. - Since 2013, various cultural and environmental restoration projects have been initiated to enhance the town's appeal and preserve its mining heritage [14][15]. - The opening of the 312平硐 mine to tourists in 2020 has revitalized local tourism, with the introduction of themed hotels and art spaces [15][17]. Group 4: Community Engagement and Economic Impact - Local residents have actively participated in heritage preservation efforts, with initiatives to engage the community in cultural activities and storytelling [11][18]. - The transformation has led to economic benefits for returning entrepreneurs, with new businesses emerging that focus on local culinary traditions and cultural products [17]. - The town's recognition as a "National Civilized Town" in 2025 reflects the positive changes brought about by these initiatives [16].