Yellow Grass is a town in southern Saskatchewan, Canada at 49°44′N 104°15′W. It is located 30 km northwest of Weyburn, at the junction of provincial highways 39 and 621. The town is located on the Canadian Pacific Railway Soo Line. The elevation is at 1875 feet (572 m) above sea level.The town was founded as an unincorporated village and named after the yellow prairie grass that surrounds the area. The town was built shortly after the railway line was completed in 1893.