Highway 641 begins near Rouleau and extends north to the Trans Canada Highway Highway 1 intersection. The rural municipality of Reburn number 130 office is located in Rouleau and administers to a population of 245. This area is part of the Regina Plain landscape area of the Moist Mixed Grasslandecoregion featuring mainly cereal crops in the dark brown soils. The RM of Pense is located between the city ofMoose Jaw and the provincial capital city of Regina. At km 24.6 Highway 641 enters the village Pense. At km 25.4, it intersects Saskatchewan Highway 730. Highway 730 connects to Regina, Saskatchewan east of this intersection. Lumsden is located at the km 55.9 intersection with Highway 11 in the Qu'Appelle Valley created by the Qu'Appelle River. in Lumsden The town of Lumsden features the Lumsden Museum which is home to several restored heritage buildings. The Lumsden Trans Canada Trail Committee helped establish of the Trans Canada trail. The trail has been groomed for walking, hiking, cycling, skiing, horseback riding, canoeing and snowmobiling. Craven, the home of the Craven Country Jamboree, is located at the Highway 99 and Highway 20 junctions. Highway 641 continues north for and then turns east before again continuing northerly. This final stretch of the highway is part of the Strasbourg Plain landscape area of the Moist Mixed Grassland ecoregion featuring small trembling aspen bluffs around the occasional slough. Earl Grey is located at the intersection with Highway 22. There are no localities located at the intersection with the secondary Highway 731. Last Mountain House Provincial Park protects the heritage site of the Hudson's Bay Company post Last Mountain House established in 1869. The terminus of Highway 641 is at the Saskatchewan Highway 15 intersection at Semans.
History
Between 1897 and 1909, municipal administration affairs were handled by Local Improvement DistrictNumber 165. The LID changed its boundaries on December 13, 1909, and on January 1, 1913, the LID was renamed Pense No. 160. During the 1940s work was undertaken on paving roadways, a man could earn 35 cents an hour or $ today a man and two horses could be employed at a rate of 65 cents an hour $ today, a horse drawn drag would earn 37.5 cents an hour $ today, and if a farmer owned a tractor, a tractor drawn drag could earn as much as 50 cents per hour $ today. The Saskatchewan Highway Act was established in 1922, in compliance with the 1919 Canadian highway act. At the initial stages of the Saskatchewan Highway Act, of provincial highways were gravel and the rest were earth roads. The road allowances were laid out as a part of the Dominion Land survey system for homesteading. Travel along the Provincial Highway 641 before the 1940s would have been traveling on the square following the township road allowances, barbed wire fencing and the Canadian Northern rail line. As the surveyed township roads were the easiest to travel, the first highway was designed on 90-degree, right-angle corners as the distance traversed the prairie along range roads and township roads. There is a historical monument erected along the highway which states that the early railway was established along the east side of the Last Mountain Lake in 1907, and constructed on the west side in 1911. The monument documents as well the "Lady of the Lake" sternwheeler which was used on Long Lake. Local historians clarify that the rail came to the east of the Lake in 1911, and to the west in 1912. The "Lady of the Lake" began as a sternwheeler, but was modified to a screw propeller. Also on the Lake the "S.S. Qu'Appelle", a luxurious steamer, towed a barge across the lake. Lumsden was initially served by the Canadian National Railway CNR, however the Canadian Pacific Railway CPR was built through Craven in 1910. The new line brought freight to Lumsden infrequently and the elevator was torn down in 1927, and the CNR track removed the next year. The highway went through where the CNR bridge had been built. Highway 20 is marked on an early 1926 and 1955 maps, but highway 641 is unmarked - showing up as surveyed township and range roads only.