OS Area: ND -
SIBs (Significant Isles of Britain and Ireland) - The SIBs are defined as "naturally occurring land which at MHWS is completely surrounded by water with either an area of at least 30 hectares within the MHWS contour line or an 'easily accessed' summit with prominence of at least 30 metres above MSL, or both, all man-made links and structures being discounted". The definition of 'easily accessed' summits are those that can be comfortably ascended by walking, involving nothing more challenging than easy grade 1 scrambling. They were researched by Alan Holmes.
Initially confined to Britain, in August 2018 the list was extended to include Ireland, Isle of Man and the Channel Isles.
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SIBs (Significant Isles of Britain and Ireland) List & GPS Waypoints:
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Sort this list by: Name | Height | Popularity | Prominence | Significance
- '0080.-' ND461963 Berryhill (80m, p80)
- '0053.-' ND355768 Cairn Hill (Stroma) (53m, p53)
- '0038.-' ND330993 Cava (38m, p38)
- '0057.-' ND304895 Gallow Tuag (South Walls) (57m, p57)
- '0032.-' ND473990 Glimps Holm (32m, p32)
- '0042.-' ND435967 Hunda (42m, p42)
- '0023.-' ND465784* Muckle Skerry (23m, p23)
- '0022.-' ND309976 Rysa Little (22m, p22)
- '0029.-' ND362903 Switha (29m, p29)
- '0042.-' ND326958 Thomson’s Hill (Fara) (42m, p42)
- '0041.-' ND391841 Warbister Hill (41m, p41)
- '0119.p' ND455886 Ward Hill (S. Ronaldsay) (119m, p119)
- '0059.-' ND352938 West Hill (59m, p59)
Total = 13 SIBs (Significant Isles of Britain and Ireland) in OS Area ND