A Nuttall is a mountain in England or Wales with a height over 2000ft and a prominence greater then 15m
A Birkett is a mountain in the Lake District, England with a height greater then 1,000ft.
The Synges are a list of peaks in the Lake District, England, listed in Timothy Synge's The Lakeland Summits: Survey of the Fells of the Lake District National Park
A Fellranger is a peak featured in the Lake District, Mark Richard's Fellranger guidebook series.
A Bridge is a peak featured in George Bridge's book: Mountains of England and Wales: Tables of the 2000ft Summits