Logging was the major industry in the mountains Ōfuki village region, and the population of the area swelled during the postwar construction boom until the 1960s, when a shift to foreign lumber imports decimated the local industry. The accompanying population decline was severe, and the average age in Ōfuki as of 2011 is 67. In addition to logging, mining was also a major part of the mountain economy. The nearby Ichinokawa Mine was founded at the beginning the Edo period and was a major source of antimony until its closure due to lack of economic viability in 1957. Large stibnite crystals taken from the mine are on display both in Saijō and in museums all over the world. The mine was controlled for generations by the Sogabe family before being purchased in the Showa period by the Sumitomo Metal Mining Co., which also managed the nearby Besshi copper mine. All that remains of the mine complex today is a sealed-off stone gateway leading to one of the larger mine shafts.