Skiddaw

A Marilyn is any mountain in Britain or Ireland with a prominence over 150m, regardless of height.

A Hump (Hundred and upwards Metre Prominence) is any mountain in Britain or Ireland with a prominence over 100m, regardless of height.

A Simm is any mountain in Britain or Ireland with a prominence over 30m and a height above 600m.

A Furth is any peak in England, Wales or Ireland with a height above 3000ft

A Hewitt (Hill in England, Wales and Ireland over Two Thousand) is a mountain in England, Wales or Ireland with a height over 2,000ft and a prominence greater then 30m.

A Nuttall is a mountain in England or Wales with a height over 2000ft and a prominence greater then 15m

A Wainwright is a mountain located with the Lake District, England that is featured in Alfred Wainwright's book: Pictorial Guides to the Lakeland Fells

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

The Trail 100 list is a list of "must climb" mountains in the United Kingdom.

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

A Buxton & Lewis is a peak featured in the book by Chris Buxton and Gwyn Lewis, "Mountain Summits of England and Wales".