Why is Saskatchewan a major world producer of potash?

Saskatchewan is a major world producer of potash primarily because it sits atop vast, high-quality geological deposits known as the Prairie Evaporite Formation. These deposits consist of ancient evaporite formations—sedimentary rocks created by the intense evaporation of ancient saltwater bodies—which contain significant concentrations of potassium-rich minerals like sylvite.1

The potash in Saskatchewan is found in a band that runs diagonally across the province from west to east, with its northernmost point located west of Saskatoon. Following the discovery of these extensive mineral reserves, the province emerged as a global leader in the production and export of potash, which is essential for the manufacturing of fertilizer to support global crop yields. Modern mining operations in the region utilize both traditional underground extraction and solution mining to recover these valuable resources from deep underground.21