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. Down south, the highway is popular for tourists heading out to the Qu'Appelle Valley and resorts and beaches of Last Mountain Lake.

History

• On September 26, 2000 Highway 20 saw construction in resurfacing the highway for 6.6 km just north of Lanigan
• June 20, 2001, another resurfacing project resulted in improvements to a 12.9 km section of Highway 20 just north of Guernsey. It was just north of the Highway 16 junction, and northward and cost an estimated $800,000.

Major attractions

• 20 Feet (6.1 Metres) high Whooping Crane named Walter was built April 1987 by the side of Highway 20 near Govan
• Basin and Middle Lakes Migratory Bird Sanctuary
• Lucien Lake Regional Park near the village of Middle Lake
• Last Mountain House Provincial Park
• Last Mountain Regional Park
• Last Mountain Lake - Regina Beach, Saskatchewan Beach 11 km NW of Craven, Lumsden Beach
• River Park regional park and Campground near Lumsden.
• Craven World Campground near Craven which hosts the annual summer Craven Country Jamboree
• Humboldt & District Museum and Art Gallery and Humboldt Historic Water Tower
• Strasbourg Station railway station has been refurbished into the museum.

Trivia

• 1925 Saskatchewan Wheat Pool Elevator No. 1 opened at Bulyea junction
• June 1963, the European-based Alwinsal Corporation of Canada established near Lanigan now known as Potash Corporation of Saskatchewan

Major intersections

From south to north:

Rural municipality	Location	km	mi	Destinations	Notes
Lumsden No. 189	Lumsden	0.0	0.0	Hwy 641 south – Pense Hwy 11 (Louis Riel Trail) – Saskatoon, Regina	Interchange; south end of Hwy 641 concurrency
	​	9.4	5.8	Hwy 729 east (Russell Hill Road)
↑ / ↓	​	9.9	6.2	Crosses the Qu'Appelle River
Longlaketon No. 219	Craven	10.0	6.2	Hwy 641 north – Earl Grey	North end of Hwy 641 concurrency
		10.3	6.4	Hwy 99 east – Southey
	​	19.6	12.2	Hwy 322 north – Silton
McKillop No. 220	​	35.9	22.3	Hwy 22 east – Southey, Fort Qu'Appelle
	Bulyea	39.1	24.3	Hwy 220 west – Rowan's Ravine Provincial Park
	Strasbourg	51.5	32.0	Hwy 731 east – Serath
Last Mountain Valley No. 250	No major junctions
Wreford No. 280	​	91.1	56.6	Hwy 15 east – Raymore	South end of Hwy 15 concurrency
	Nokomis	100.8	62.6	Hwy 15 west – Kenaston, Outlook	North end of Hwy 15 concurrency
		101.0	62.8	Hwy 744 east
Usborne No. 310	​	127.0	78.9	To Hwy 761 west – Drake
	Lanigan	138.6	86.1	Hwy 16 (TCH/YH) east – Yorkton	South end of Hwy 16 concurrency
		142.0	88.2	Hwy 761 – Drake, Leroy
	​	148.7	92.4	Hwy 16 (TCH/YH) west – Saskatoon	North end of Hwy 16 concurrency
Wolverine No. 340 Humboldt No. 370	No major junctions
City of Humboldt		186.8	116.1	Hwy 5 (Glen Hall Drive / 8th Avenue) – Saskatoon, Watson
Humboldt No. 370	​	199.7	124.1	Hwy 756 east – Annaheim
	​	212.2	131.9	Hwy 669 south	Near Fulda
Three Lakes No. 400	​	222.8	138.4	Hwy 777 east – Lake Lenore	Near Pilger; south end of Hwy 777 concurrency
	Middle Lake	227.0	141.1	Hwy 777 west – Cudworth	North end of Hwy 777 concurrency
Invergordon No. 430	​	258.8	160.8	Hwy 41 – Saskatoon, Wakaw, Melfort
	​	261.2	162.3	Tway Access Road
	​	266.1	165.3	Hwy 320 west – Domremy
	Crystal Springs	268.5	166.8	Hwy 778 east – Kinistino
Birch Hills No. 460	​	291.1	180.9	Hwy 3 (CanAm Highway) – Prince Albert, Birch Hills, Melfort
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus