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.

There are 7 subdivisions within the RCM:

Population trend:

Census	Population	Change (%)
2016	14,286	3.2%
2011	14,756	2.0%
2006	14,466	0.5%
2001	14,535	3.1%
1996	15,005	2.4%
1991	15,381	N/A

Mother tongue (2016)

Language	Population	Pct (%)
French only	13,485	95.3%
English only	420	3.0%
English and French	90	0.6%
Other languages	150	1.1%

Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:

• Burbank Pond Natural Interpretation Centre (Danville)
• Asbestos Musical Camp (Val-des-Sources)
• JM Asbestos Mine Visit (Val-des-Sources)
• The Little Happiness of Saint-Camille (Saint-Camille)
• Mineralogical Museum, and Museum Mine History (Val-des-Sources)
• Mont-Ham full air Centre (Saint-Joseph-de-Ham-Sud)

• List of regional county municipalities and equivalent territories in Quebec

• MRC des Sources.
• Tourisme dans La MRC des Sources
• Portail Régional