Aasleagh Falls are in County Mayo. The Western Way passes between The Devilsmother to the south and the imposing Ben Gorm to the North West. The Erriff valley opens up as the trail follows alongside the river for some 5 kilometres to Houston’s bridge. Thereafter the way passes through conifer plantations to reach Sheeffry. This part of The Western Way follows the river and forestry roads.
The Erriff River is a major feature of this section of the trail; Aasleagh Falls can be spectacular when there is a flood on the river for it is a spate river. The river is renowned for its salmon fishery and Aasleagh lodge was once owned by the Marquise of Sligo.