The Quartz Cliff in Laanila was once considered a sign of gold in Lappish Wilderness. Finding the Cliff raised gold fever in Finnish Lapland. Which was followed by numerous mining companies and private lucky fishermen trying out their luck, in the Laanila and Saariselkä area.
Systematic mineral exploration in Lapland began in the last years of the 19th century. On the basis of the exploration trips, geological maps of the gold-rich areas were drawn and gold bedrock was searched. Doctor of Geology J.J. The intersecting Zenite and quartz bands discovered at Hangedoy in Sederholm in 1898 led to the search for rock gold.