Glen Flagler and Killyloch were two single malt whiskies produced between 1965 and 1985 at the Moffat Grain distillery in the Lowlands. Little is known about them as almost all existing casks went into blends. 

The Moffat distillation complex was built in 1964/65 by Inver House to supply malt and grain whisky for their blended Scotch brands. The Garnheath grain whisky was the main focus at Moffat but two sets of stills were installed to make single malt whisky. 

Each of these sets of stills were regarded as separate single malt distilleries. The Glen Flagler stills made an unpeated Lowland single malt, while the Killyloch stills made a heavily peated spirit called Islebrae and a lightly peated malt called Killyloch.

There were several malt distilleries added into grain whisky complexes like this in Scotland in the 1970s, and the majority of them were short-lived for a reason. Killyloch was only produced for a few years and is now one of the rarest of all Scotland's single malt whiskies.