Mid Colne Valley
Mid Colne Valley is a 132 hectare biological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon and Denham in South Buckinghamshire . 
<triplet> Mid Colne Valley <subj> Site of Special Scientific Interest <obj> heritage designation <triplet> Harefield <subj> London Borough of Hillingdon <obj> located in the administrative territorial entity