Posters, scented items and drones: Highland hunt for teenager’s missing therapy dog

After retriever Louie got spooked on a walk his owners have not stopped searching for him - and local walkers have stepped in too

Walking along Nevis Gorge, the rumble of Steall Falls can be heard long before you see it. Rocky terrain clears to expansive grassland, forest and shrubbery.

Among Glen Nevis's lush greenery, flashes of bright red paper can be seen. It is not litter left by tourists who have trekked to this beauty spot, but missing posters handed out by the family of Louie, a two-year-old golden retriever who has been missing for a fortnight.