Les Sources () 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 ().
The Asbestos strike, a critical part of Quebec's labour history, occurred in the region.
There are 7 subdivisions within the RCM:
Population trend:
Mother tongue (2016)
Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:
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