Les Collines-de-l'Outaouais Regional County Municipality

Les Collines-de-l'Outaouais (French for "The hills of the Outaouais") is a regional county municipality in the Outaouais region of western Quebec, Canada. The region nearly encircles the City of Gatineau, which is to the south. Its administrative seat is in Chelsea, Quebec.

It was created in January 1991 when the Communauté régionale de l'Outaouais (Outaouais Regional Community) was split into Les Collines-de-l'Outaouais RCM and the Communauté urbaine de l'Outaouais (Outaouais Urban Community, now City of Gatineau). The region is home to the majority of Gatineau Park. It is bisected by the Gatineau River which flows from north to south. The Ottawa River forms the southwestern boundary.

Subdivisions
There are six subdivisions within the RCM:


 * Municipalities (6)
 * Cantley
 * Chelsea
 * L'Ange-Gardien
 * La Pêche
 * Pontiac
 * Val-des-Monts

Ethnicity
Source: 2021 Census
 * 92.0% White
 * 4.9% Indigenous
 * 3.1% Visible Minority

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


 * Autoroutes


 * Principal highways


 * Secondary highways


 * External routes
 * None