Sule Stack

{{About|the small sea stack north of the Scottish mainland|the larger nearby island|Sule Skerry|the island north of the Hebrides|Sula Sgeir}}

{{Use dmy dates|date=April 2022}}

{{Infobox Scottish island

|coordinates = {{coord|59.02|-4.51|display=inline}}

|GridReference=HX561179

|celtic name=

|norse name=

|meaning of name=Gannet Stack, from sùlaire (Scottish Gaelic for northern gannet), and Stack (originally Norse) Norse{{sfn|Stewart|1938|p=283}}

|area={{cvt|2.9|ha|acre|frac=4}}

|area rank=

|highest elevation={{cvt|36|m|ft}}

|Population=0

|population rank=

|main settlement=

|island group= North Atlantic

|local authority= Orkney

|references={{sfn|National Records of Scotland|2013}}{{sfn|Haswell-Smith|2004}}{{sfn|Orkney (Mainland)|2014}}

|Image=Sule Stack 01.04.2012 14.08.11.jpg}}

Sule Stack or Stack Skerry is an extremely remote island or stack in the North Atlantic off the north coast of Scotland. It is formed of Lewisian gneiss.{{sfn|Kirton|Hitchen|1987}}

Sule Stack lies {{convert|49|km|nmi|frac=2|abbr=off}} north of the Scottish mainland, and {{cvt|66|km|nmi|frac=2}} west of the Orkney mainland, at {{gbmapping|HX561179}}. Sule Stack's sole neighbour, Sule Skerry, lies {{cvt|10|km|nmi|frac=2}} northeast and the remote islands of Rona and Sula Sgeir lie further to the west. Sule Stack and Sule Skerry are home to thousands of gannets and as a result are listed as a special protection area; the island falls within the administrative region of the Orkney Islands.

The island (along with Sule Skerry) has been designated an Important Bird Area (IBA) by BirdLife International because it supports breeding populations of several species of seabirds.{{cite web |url= https://datazone.birdlife.org/site/factsheet/2607 |title=Sule Skerry and Sule Stack|author= |date=2024|website= BirdLife Data Zone|publisher= BirdLife International|access-date= 2024-08-28}}

File:Stack Skerry.PNG

Bird species nesting on the stack include:{{sfn|EEA|n.d.}}

• Razorbill Alca torda
• Atlantic puffin Fratercula arctica
• Fulmar Fulmarus glacialis
• Great black-backed gull Larus marinus
• Common shag Phalacrocorax aristotelis
• Black-legged kittiwake Rissa tridactyla
• Arctic tern Sterna paradisaea
• Northern gannet Morus bassanus
• Common guillemot Uria aalge