The slew of mud and debris came down 13 kilometres south of Sicamous, B.C., at around midnight Sunday.
RCMP say a residence was evacuated and heavily damaged, and three vehicles on the same property were also casualties to the slide, but no one was injured.
The mud blocked off part of Highway 97A, and a stretch of road from Grindrod to Sicamous was closed for hours.
The highway reopened to single lane traffic at about noon Monday, and fully opened about six hours later.
The Ministry of Transportation says the cause of the mudslide is under investigation, but is likely related to unseasonably warm and wet conditions. (CKIZ)