Highway 21 is a highway

Highway

A highway is any public road. In American English, the term is common and almost always designates major roads. In British English, the term designates any road open to the public. Any interconnected set of highways can be variously referred to as a "highway system", a "highway network", or a...

 in the Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 province of Saskatchewan

Saskatchewan

Saskatchewan is a prairie province in Canada, which has an area of . Saskatchewan is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, and on the south by the U.S. states of Montana and North Dakota....

. It runs from Montana Secondary Highway 233 at the United States border near Willow Creek to Highway 950

Saskatchewan Highway 950

Highway 950 is a highway in the Canadian province of Saskatchewan. It runs from Highway 21/Highway 919 to Highway 26/Highway 224. Highway 950 is about 35 km long....

/Highway 919

Saskatchewan Highway 919

Highway 919 is a highway in the Canadian province of Saskatchewan. It runs from Highway 21/Highway 950 to a dead end on the Cold Lake Air Weapons Range...

 within the Meadow Lake Provincial Park

Meadow Lake Provincial Park

Meadow Lake Provincial Park is a northern boreal forest recreational park accessed centrally through Goodsoil. The village of Goodsoil is located approximately 78 km west of Meadow Lake. The eastern entrance to the park is located north of Dorintosh. The western gateway into the Meadow...

. Highway 21 is about 722 km (449 mi.) long.

Highway 21 passes through the major communities of Maple Creek

Maple Creek, Saskatchewan

-History:After the North-West Mounted Police had been established at Fort Walsh, settlers began to explore the Cypress Hills area, living along the creeks and doing small-scale ranching. The Department of the Interior was operating a First Nations farm on the Maple Creek, a few miles south from...

, Kindersley

Kindersley, Saskatchewan

Kindersley is a town in west central Saskatchewan, Canada, located at Section 10, Township 29, Range 23, West of the 3rd Meridian, along highway 7, a primary highway linking Calgary, Alberta and Saskatoon, Saskatchewan...

, Kerrobert

Kerrobert, Saskatchewan

Kerrobert is a town in west central Saskatchewan. Incorporated in 1910, its 2007 population was 1,011. This quaint small town is home of the Kerrobert Tigers. The town is known for its large water tower, clearly visible from 15 kilometres away....

, and Unity

Unity, Saskatchewan

-Area statistics:*Lat 52°26′ N*Long 109°10′00″ W*Dominion Land Survey Section 18, Township 40, Range 22, West of the 3rd Meridian*Time zone UTC−6-Location:-See also:*List of towns in Saskatchewan...

. Highway 21 intersects three major western Saskatchewan highways: Highway 1

Saskatchewan Highway 1

Highway 1 is the Saskatchewan section of the Trans-Canada Highway mainland route. The total distance of the Trans-Canada Highway in Saskatchewan is . The highway traverses Saskatchewan from the western border with Alberta, from Highway 1, to Manitoba where it continues as Highway 1, PTH 1. The...

, Highway 7

Saskatchewan Highway 7

Saskatchewan Highway 7 is a major paved undivided provincial highway in the Canadian province of Saskatchewan, running from the Alberta border to Saskatoon...

, and Highway 16

Saskatchewan Highway 16

Highway 16 is a provincial paved highway in the Canadian province of Saskatchewan. It is the Saskatchewan section of the Yellowhead Highway, and also the Trans-Canada Highway Yellowhead section. The main purpose of this highway is to connect Saskatchewan with Canadian cities such as Edmonton and...

.

Highway 21 has average annual daily traffic ((AADT) of 500 vehicles a day and truck traffic is 30% of this total. Unity

Unity, Saskatchewan

-Area statistics:*Lat 52°26′ N*Long 109°10′00″ W*Dominion Land Survey Section 18, Township 40, Range 22, West of the 3rd Meridian*Time zone UTC−6-Location:-See also:*List of towns in Saskatchewan...

has two inland grain terminals. The oil and gas industry is also active in this area.

History

In 1999 the granular pavement section of Highway 21 north of Kerrobert was tested with a cold in-place recycling or “CIR” method to rehabilitate highways. This CIR process is a cost effective method which recycles the top surface of a road. This pulvarized material is mixed with asphalt emulsion and spread and compacted back onto the highway surface. This surface is then recovered with a new seal dependant on traffic volume.