The river is fast flowing, with many shoals, whilst the surrounding land is generally flat and is occasionally subject to flooding.As part of this work the association has gradually purchased the rights to undertaken commercial salmon fishing with fixed nets at locations on the Earn.There is an intimacy of scale reinforced by the strong human influence of well managed farmland and woodland but the hill tops have a wild rugged character.Plantations make a major contribution to the scene, the shape and extent of afforested areas respecting and relating well to the natural landform.There are very fine strands of broadleaved trees in the form of woodlands, parklands and hedgerow plantings, and the river is alternatively swift and leisurely, open-meadowed or alder enclosed.