In 1887, John Bartholomew's Gazetteer of the British Isles described Bog of Allen like this:
Allen, Bog of, a bog of great but undefined extent, Leinster. The name generally applies to the whole series of bogs between the Slievebroom mountains and the parallel of Mullingar, and specially to the east broken portion of the series, which lies in the NW. of co. Kildare, and thence expands W. into King's co.
GB Historical GIS / University of Portsmouth, History of Bog of Allen, in and Ireland | Map and description, A Vision of Ireland through Time.
URL: https://www.visionofireland.org/place/28620
Date accessed: 09th May 2024
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