The silver, black and tan dapple pet, named Indi, went missing on Ben Rinnes, near Dufftown in Banffshire, yesterday afternoon.
Owner Cara Wilson took to Facebook in a desperate bid to find the dog.
She explained her dog slipped out of her harness when another dog “went after her” and “chased her downhill for 15 minutes or so before we found the off-lead dog”.
Cara added: “She is my entire world, if anyone is in the area please help look for her. We have a few people looking already but no luck since 3pm (Saturday).”
Indi, who is ten months old, is micro-chipped and does not currently have a harness or collar on.
Anyone who thinks they may have seen the dog is asked to contact Cara on 07507815241