Bac Mòr

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Bac Mòr
Scottish Gaelic nameBac Mòr
Meaning of namelarge bank or obstacle
Bac Mòr Dutchman's Cap-edit.jpg
Bac Mòr is located in Argyll and Bute
Bac Mòr
Bac Mòr
Bac Mòr shown within Argyll and Bute
OS grid referenceNM243387
Coordinates56°27′N 6°28′W / 56.45°N 6.47°W / 56.45; -6.47
Physical geography
Island groupTreshnish Isles
Highest elevationDutchman's Cap 86 m
Sovereign stateUnited Kingdom
Council areaArgyll and Bute

Bac Mòr is a Scottish island, one of the Treshnish Isles,[3] sometimes referred to as The Dutchman's Cap in English because of its shape.[2]

Origin of name[edit]

The Gaelic name has more than one possible interpretation. Although Mòr clearly means "large" (as opposed to Bac Beag, its smaller sister), the word Bac can mean either a "bank", or an "obstacle" or "hindrance".

The island's profile is one of the more distinctive amongst the Scottish Islands.


Bac Mòr from Lunga

Bac Mòr is of ancient volcanic origin, and the peak in the middle is a former cone. The low-lying plain surrounding it is a glassy lava field.

The remains of summer sheilings have been found on the island, suggesting that it was inhabited at one time, even though it has no safe landing places.


The Treshnish Isles, which are uninhabited today, are owned by a charity, the Hebridean Trust. They have been collectively designated as a Site of Special Scientific Interest and a Special Protection Area, due to their importance for breeding seabirds. The islands are also home to a number of wildflowers.


  1. ^ National Records of Scotland (15 August 2013). "Appendix 2: Population and households on Scotland's Inhabited Islands" (PDF). Statistical Bulletin: 2011 Census: First Results on Population and Household Estimates for Scotland Release 1C (Part Two) (PDF) (Report). SG/2013/126. Retrieved 14 August 2020.
  2. ^ a b Haswell-Smith, Hamish (2004). The Scottish Islands. Edinburgh: Canongate. p. 105. ISBN 978-1-84195-454-7.
  3. ^ a b Ordnance Survey. "View: Sheet 44, Coll and Tiree - Ordnance Survey One-inch to the mile maps of Great Britain, Seventh Series, 1952-1961". National Library of Scotland. National Library of Scotland. Retrieved 23 January 2016.

Coordinates: 56°27′37″N 6°28′31″W / 56.46028°N 6.47528°W / 56.46028; -6.47528