| Barnston Mount | |
| Highest: | 743 |
| Country: | Canada |
| State: | Quebec |
| Location: | Coaticook |
| Region: | Estrie |
| District: | Coaticook Regional County Municipality |
Mount Barnston is a mountain located at Coaticook, in the regional county municipality of Coaticook, in the administrative region of Estrie, in Quebec (Canada), just north of the American border with Vermont.[1] Its altitude is 743 meters [2]
The mountain is located near Lyster Lake and the hamlet of Baldwin Mills in the agricultural valley of the Coaticook River.