Les Sources (French pronunciation: [le suʁs]) is a regional county municipality in the Estrie region of Quebec, Canada.

The seat is the city of Val-des-Sources.

Before April 22, 2006 it was known as Asbestos regional county municipality, and before August 1990 it was known as L'Or-Blanc regional county municipality (French: white gold).

The Asbestos strike, a critical part of Quebec's labour history, occurred in the region.

Population trend:[5][3] Mother tongue (2016)[3] Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:[6]