Sections of the road form part of the Wild Atlantic Way.

The road travels along Lough Swilly to reach Buncrana.

After Carndonagh, the road goes to meet the Lough Foyle coast at Moville.

From Moville the road proceeds southwest to end at the County Londonderry border just past Muff.

This article related to the geography of County Donegal, Ireland is a stub.