| Mulgrave-et-Derry | |
| Settlement Type: | Municipality |
| Pushpin Map: | Canada Western Quebec |
| Pushpin Map Caption: | Location in western Quebec |
| Coordinates: | 45.7833°N -97°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Outaouais |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Papineau |
| Established Title1: | Constituted |
| Established Date1: | January 1, 1870 |
| Leader Title: | Mayor |
| Leader Name: | Michael Kane |
| Leader Title1: | Federal riding |
| Leader Name1: | Argenteuil—Papineau—Mirabel |
| Leader Title2: | Prov. riding |
| Leader Name2: | Papineau |
| Area Total Km2: | 319.00 |
| Area Land Km2: | 289.52 |
| Population Total: | 461 |
| Population As Of: | 2021 |
| Population Density Km2: | 1.6 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 24.9% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 476 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | J8L 2H2 |
| Blank Name: | Highways |
| Area Code: | 819 |
Mulgrave-et-Derry, is a village north of Mayo, in the Papineau Regional County Municipality, Quebec, Canada. The region includes a number of notable lakes, including Gull Lake, Hawk Lake, Lady Lake, Smallian Lake, Lac St. Sixte, Lac La Blanche and Little Lake. Community buildings include the Hill and Gully Riders Snowmobile Club, St. Matthew's Evangelical Lutheran Church, and Our Lady of Light Roman Catholic Church (now Our Lady of Light Cultural Centre).
The Wallingford-Back mine, once one of Canada's largest sources of quartz, is located in Mulgrave-et-Derry. It became a tourist destination after ceasing operations in the 1970s, but also became unsafe; in 2017, it was barricaded.[1]
| Escutcheon: | Per pale Vert and Or on a pile reversed throughout per pale Argent and Azure a log cabin above a bar gemel wavy counterchanged. |
| Crest: | A cerulean warbler singing proper perched on an oak branch fructed Or leaved Vert. |
| Motto: | Ad Harmoniam Cum Natura (Towards Harmony With Nature) |
| Supporters: | Two black bears proper, that to the dexter supporting on its shoulder a pickaxe Or its blade Argent, that to the sinister supporting on its shoulder an axe Or its blade Argent, both standing on a grassy mount set with bloodroot wildflowers proper and a split-rail fence Or. |
| Notes: | Granted 15 September 2022[2] |
| Badge: | A lozenge per pale Argent and Azure charged with a snowmobile above a bar gemel wavy counterchanged and surmounting an annulus per pale Azure and Argent edged and inscribed with the Motto counterchanged. |