南台子遗址位于河北省张家口市蔚县东北部，地处冀西北广义泥河湾盆地南部的蔚县盆地中东部。2013年，河北省文物考古研究院等单位组织发掘20 m²，发现3个阶段的古人类文化遗存。上文化层为战汉时期。中文化层发现40件石制品，根据地层、石制品组合推断可能与西沙河、下马碑遗址上文化层年代一致，其中的简单细石叶石核可能代表了泥河湾盆地最早阶段的细石叶技术。下文化层碳十四测年距今3.3万年，发现石制品74件、烧石58件，石制品为石片石器技术类型，属于中国北方以小石器为主的主工业，为华北最晚阶段的小石器技术。下文化层出土了疑似烧石，可能为“石烹法”煮水或者加热液体性食物遗留下的遗物，为探索旧石器时代晚期古人类的用火方式提供了重要线索。遗址处于华北旧石器时代晚期石器技术变革的关键阶段，早晚地层叠压的小石器、细石叶技术的发现对探索华北小石器技术与细石叶技术的关系以及细石叶技术的出现具有重要价值。

The Nantaizi site is located in the northeastern part of Yu County, Zhangjiakou City, Hebei Province, within the central-eastern Yuxian Basin, which lies in the southern part of the broader Nihewan Basin in northwestern Hebei. In 2013, the Hebei Provincial Institute of Cultural Relics and Archaeology and other units excavated an area of 20 m², revealing three phases of cultural remains. The upper cultural layer dates to the Warring States-Han period. The middle cultural layer yielded microblade technology stone artifacts; based on the stratigraphy and lithic assemblage, these are estimated to approximately 20,000 years ago. According to the ¹⁴C dating results, the age of the lower layer is 33 ka before present, and 58 burnt stones and 74 stone artifacts were unearthed. The stone artifacts belong to the core-flake technology type, characteristic of the main industry dominated in northern China, representing the latest stage of core-flake technology in North China. The burnt stones may be remnants left from the “stone boiling” method used in the Late Paleolithic to heat water or liquid food, providing important clues for exploring fire-use behaviors of Late Paleolithic humans. The site is situated at a critical stage of the Late Paleolithic lithic technological transformation in North China. The discovery of core-flake and microblade technologies in stratigraphic superposition from the early to late layers holds significant value for exploring the relationship between core-flake technology and microblade technology in Northern China, as well as the emergence of the latter.