 The deepest seam of the Middle Coal Measures, the Arley outcrops a quarter mile north of the estate boundary, Arley Brook.According to the United Kingdom Census 2001, the civil parish of Haigh had a population of 594.Haigh Windmill, the only remaining windmill in Greater Manchester, was built in 1845 and supplied well water to John Sumner & Company's Haigh Brewery which, until the 1950s, was situated behind the Balcarres Arms public house.