1990年10月，牡丹江市文物管理站与宁安市文物管理所在进行秋季文保单位安全检查时，根据群众提供的线索，在省级文保单位──洋草沟古墓群A区的东侧，当地群众称为“热水坑”的熔岩台地中，发现一群有遗迹、遗物的火山熔岩石穴遗址。为弄清石穴居址的分布及文化内涵，1991年春 In October 1990, Mudanjiang City Cultural Relics Management Station and Ning’an City Cultural Relics Management Office conducted the security inspection of the autumn cultural security units. According to the clues provided by the masses, on the eastern side of the provincial cultural protection unit - A group of volcanic lava and cave sites with relics and relics were found in the lava basement known as “hot puddles” by local people. In order to understand the distribution and cultural connotation of the stone cave site, the spring of 1991