Somewhere along that same river stands a water mill recorded as a monument of archaeological significance, a structure that used the mechanical force of moving water, channelled typically through a millrace and onto a wheel, to grind grain or process other materials for the surrounding community.

Water mills were a cornerstone of rural Irish economic life from at least the early medieval period, and County Clare has a number of surviving examples in varying states of repair. Ennistimon itself grew as a market town, and the presence of a mill on the Cullenagh would have been entirely in keeping with that function, serving local farmers and tradespeople across generations. The river's gradient through the town made it well suited to powering such machinery, and the townscape that developed around the falls reflects centuries of that practical relationship between water and industry.