Highway 20 is a major road intended for travel by the public between Highway 11 Lumsden to Highway 3 at Birch Hills. Saskatchewan's main roadways are located in the central/southern geographical land area of rolling prairie and grass land in a western Canadian prairie province. This highway is one which runs south to north and is located just east of Saskatoon and just north of Regina. At the northern extremity near Lanigan, the highway helps to service the PCS Lanigan potash mining operation.