Prairie Bus Lines Ltd. is a bus transportation company. Robert B. Colborne purchased Sorenson Bus Lines in Red Deer, Alberta in 1957 and renamed it Prairie Bus Lines, which became the founding member company of the Pacific Western Group of Companies. Its services are student transportation, school bus charters, motorcoach charters, employee transportation services that carry workers to work sites, and bus lease and rental. The company reports a fleet of more than 140 buses with capacities of up to 72 passengers, about 4,500 students transported each day, and service for charters throughout Canada and the USA.