Errigal[3] (Irish: An Earagail)[4] is a 751-metre (2,464 ft) mountain near Gweedore in County Donegal, Ireland.

[1] Errigal is also the most southern and the highest of the mountain chain called the "Seven Sisters" by locals.

Errigal is the most southern, steepest and highest of the mountain chain, called the "Seven Sisters".

[1] Another noted quality is the ever-changing shape of the mountain depending on what direction you view it from.

[4] Mount Errigal is the name of a hotel in Letterkenny, County Donegal.