Glen Isla is the most westerly of the Angus Glens, and the only one that is a through route for cars. Enroute, you will pass the Loch of Lintrathen, a wildlife reserve and a summer home for Ospreys.

In the winter months, all sorts of wildfowl can be found. Amongst the other outdoor delights is the Backwater Reservoir, where the road takes you across the dam itself.

Reekie Linn Falls is an impressive waterfall in natural gorged woodland; its spume effects account for its smoky ("reekie") description.