From the middle of the Meiji period, the resources of the salmon fishing industry, which relied on natural fish, gradually depleted, and new industries to supplement salmon fishing were sought. Currently, Hokkai shrimp, kombu (kelp) and the like are being landed on the coast of the Nemuro Strait by fishermen faced with losing their livelihoods due to the poor salmon catches. The remains of cattle barns that can be seen around Notsuke coastal areas are remnants of the livelihoods that relied half on fishing and half on agriculture. Dairy farming spread throughout the inland regions of the Konsen Plateau after the end of the Taisho period. This grew into a major industry at the hands of pioneers that gathered there from all around Japan. Transportation-related heritages in the inland regions of the Konsen Plateau, such as the Former Okuyukiusu relay station in Betsukai and the turntable at the former Shibetsu Station in Shibetsu convey the history of our predecessors as they aimed to secure sustainable industries by means of development from the sea to the land.