Guokang Shell Layer Introduction
The "Guokang Bed Fossil Layer" contains shellfish fossils formed between one million and six million years ago. The strata include bivalve, gastropod, and coral fossils. During the Japanese colonial period in Showa 5 (1930), the Government-General of Taiwan designated it for preservation. In 1955, the Miaoli County Documentation Committee established a "Guokang Bed Fossil Layer Monument" here, declaring that this area is to be used only for academic research and must not be exploited for other purposes, in order to preserve the fossil layer as a historical site.
