sentences:  A series of low waterfalls occur at Cunnighamhead on the Annick Water, these being, like many others, dykes that are more resistant to erosion than the surrounding rocks.Other notable waterfalls are on the Polbaith burn, Fenwick Water (near Rigghill), Glen water (Darvel) and Burn Anne.Weirs were often built to divert and provide a head of water for the many mills.