Core Viewpoint - The article highlights the unique geographical and cultural characteristics of Yanjin County in Zhaotong City, Yunnan Province, which is known as the "narrowest city in China" due to its limited width and challenging living conditions [1][2][4]. Geographical Features - Yanjin County is characterized by its narrowest point being less than 30 meters and its widest point being around 300 meters, with buildings constructed along cliffs and riverbanks [1][2]. - The county's infrastructure, including roads and railways, is tightly constrained, leading to a linear urban layout that limits expansion [2][12]. Urban Planning and Development - In response to the geographical limitations and risks of geological disasters, Yanjin has initiated a plan for overall relocation, creating a new urban layout consisting of the old county town and two new districts [14]. - Despite the development of new areas, the old town remains the most vibrant and culturally rich part of Yanjin, with a bustling atmosphere and local businesses thriving in the narrow streets [14][16]. Cultural Aspects - The local population exhibits a strong sense of community and tradition, with many residents reluctant to leave the old town despite the risks posed by natural disasters [16][23]. - The article emphasizes the warmth and hospitality of Yanjin's residents, who are open to interactions with visitors and maintain a relaxed lifestyle amidst the challenges of their environment [23][24].