sheep grazing in the carn glenshane pass in northern ireland

and area autumn blanket blue bog calluna carn conservation countryside county dye erica farm fence geological glenshane gorse grass grazing green heather high hills horizon hummock interest ireland irish landscape livestock londonderry long meadow meandering mountain mountains nature northern pass peat peatland pool posts province red river rugged rural scientific sheep sky small special sperrin sperrins stream system tetralix topography ulster undulating vulgaris winding wooden