|Gaelic name||Eileanan Treisinis|
|Meaning of name||unknown|
Treshnish Isles shown within Argyll and Bute
|OS grid reference|
|Area||128 ha (316 acres)|
|Highest elevation||Cruachan, on Lunga 103 m (338 ft)|
|Sovereign state||United Kingdom|
|Council area||Argyll and Bute|
The archipelago stretches for roughly 7 kilometres (4.3 mi) from the island of Bac Beag in the south towards Cairn na Burgh Beag to the north east. The largest island in the group is Lunga, which is 7 kilometres (4.3 mi) west of Gometra, 6 kilometres (3.7 mi) southwest of Rubha' a' Chaoil on Mull, 12 kilometres (7.5 mi) south east of Coll, and 5 kilometres (3.1 mi) north west of Staffa.
|Island||Gaelic name||Area (ha)||Highest point (m)|
|Bac Beag||Am Baca Beag||6.7||27|
|Bac Mòr||Am Baca Mòr||24.7||86|
|Sgeir a' Chaisteil||Sgeir a' Chaisteil||3.7||26|
|Sgeir an Eirionnaich||Sgeir an Eirionnaich||5||15|
|Cairn na Burgh Mòr||Cairn Bhuirg Mòr||3.6||35|
|Cairn na Burgh Beag||Cairn Bhuirg Beag||2.2||22|
There are several possible duns on the islands of Iron Age origin. Little is known of the early history, although these prominent landmarks would have been significant waypoints for the Norse settlers during their conquest in the early years of the Kingdom of the Isles, which lasted from the 9th to the 13th centuries.
Bac Mòr is also known as "The Dutchman's Cap" in English due to its shape. Bac Beag is from the Gaelic Am Baca Beag, with Bac meaning "bank" or "dune" and Beag simply being a diminutive in contrast to Mòr. Bac Mòr is also known as Baca Rois in Gaelic, which means "dune of the Ross" and is a reference to the shape of the island when framed against the Ross of Mull. Lunga is probably from the Old Norse lungr-øy, meaning "longship island". Sgeir an Eirionnaich and Sgeir a' Chaisteil are Gaelic names meaning "Irishman's skerry" and "castle skerry" respectively. Cairn na Burgh Mòr means "cairn of the large fort" and Cairn na Burgh Beg is thus "cairn of the small fort".
The name Fladda originates from the Old Norse for "flat island".
Natural history and conservation
The Treshnish Isles are part of the Loch Na Keal National Scenic Area, one of 40 in Scotland. They are also designated as a Site of Special Scientific Interest, a Special Protection Area due to their importance for breeding seabirds and a marine Special Area of Conservation. They are also known for their Atlantic grey seals and ruined castles.
|The Treshnish Isles from above Port Haunn on Mull. Nearest are Cairn na Burgh Beag and Cairn na Burgh Mòr. Behind are the low flat island of Fladda and the tallest island, Lunga, which obscures Bac Mòr and Bac Beag beyond.||The Treshnish Isles from the east as seen from Loch Tuath. From left to right: (Ellean Dioghlum), Bac Mòr, Lunga, Fladda, Cairn na Burgh Mòr, Cairn na Burgh Beag.|
- Treshnish Isles Management Plan p. 3
- Ordnance Survey Landranger Map (1:50 000) "Iona & West Mull". Sheet 48
- Haswell-Smith (2004) p. 106
- Treshnish Isles Management Plan p. 5
- Ordnance Survey Explorer Map (1:25 000) "Isle of Mull North & Tobermory". Sheet 374.
- Mac an Tailleir (2003) p. 114
- Haswell-Smith (2004) p. 105
- Mac an Tailleir (2003) p. 50
- "National Scenic Areas". SNH. Retrieved 30 Mar 2011.
- "SPA description: Treshnish". Joint Nature Conservation Committee. Retrieved 2007-07-28.
- "Argyll Marine SAC: Treshnish Isles". Retrieved 2007-07-28.
- "Mull and Iona". Scotland View. Retrieved 2007-07-28.
- Haswell-Smith, Hamish (2004). The Scottish Islands. Edinburgh: Canongate. ISBN 978-1-84195-454-7.
- Mac an Tailleir, Iain (2003) "Ainmean-àite le buidheachas/Placenames". Scottish Parliament/Pàrlamaid na h-Alba. (pdf) Retrieved 12 May 2012.
- Treshnish Isles Management Plan 2001-11 (2001) The Hebridean Trust.
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