| http://www.w3.org/ns/prov#value | - Calcareous fixed dunes are extensive, with a wide range of these represented, including large areas of lightly grazed fixed dune, relatively uncommon in northern Scotland.21A0 Machairs (* in Ireland)Tiree is considered to have the most extensive and diverse area of machair outside the Outer Hebrides. 24% of the total area of the island is machair.
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