Editing Mam Tor (section)

{{Short description|Hill near Castleton in the High Peak of Derbyshire, England}}
{{About|a peak|the English independent comic book publisher|Mam Tor Publishing}}
{{Use dmy dates|date=April 2022}}
{{Infobox mountain
| name = Mam Tor
| photo = Mam Tor Castleton.jpg
| photo_caption = Mam Tor, July 2011
| elevation_m = 517
| elevation_ref =
| prominence_m = 62
| prominence_ref =
| parent_peak = [[Kinder Scout]]
| listing = [[Dewey (hill)|Dewey]]
| map = United Kingdom Peak District#United Kingdom Derbyshire
| map_caption = Location in the Peak District##Location in Derbyshire
| map_size = 200
| label_position = right
| location = [[Derbyshire]], England
| range = [[Peak District]]
| coordinates = {{coord|53.34914|N|1.81069|W|type:mountain_scale:100000|format=dms|display=inline,title}}
| grid_ref_UK = SK127836
| topo = [[Ordnance Survey|OS]] ''Explorer'' OL1
[[Ordnance Survey|OS]] ''Landranger'' 110
| type =
| age =
| last_eruption =
| first_ascent =
| easiest_route =
}}

'''Mam Tor''' is a {{convert|517|m|ft|0|abbr=on|adj=on}} hill near [[Castleton, Derbyshire|Castleton]] in the [[Peak District National Park|High Peak]] of [[Derbyshire]], England.<ref>{{cite web |url=https://www.bbc.co.uk/news/articles/cz0119xgzxyo |title=Parking chaos and poo: The price of Mam Tor's fame|publisher=BBC |date=4 May 2025 |first=Caroline |last=Lowbridge |access-date=5 May 2025}}</ref> Its name means "mother hill",<ref>{{cite web|url=http://www.castleton.co.uk/Mam_tor.aspx|title=Mam Tor (Shivering Mountain)|publisher=Peak Hideaways|access-date=6 April 2016}}</ref> so called because frequent [[landslide|landslips]] on its eastern face have resulted in a multitude of "mini-hills" beneath it.<ref>{{cite web|url=http://peakdistrict.nationaltrust.org.uk/mam-tor |archive-url=https://web.archive.org/web/20090302112627/http://peakdistrict.nationaltrust.org.uk/mam-tor |url-status=dead |archive-date=2 March 2009 |title=Mam Tor |publisher=National Trust |access-date=9 January 2013 }}</ref> These landslips, which are caused by unstable lower layers of [[shale]], also give the hill its alternative name of Shivering Mountain.<ref>[https://books.google.com/books?id=mtKvnPNNKTcC&pg=PA11 ''Natural Curiosities of Derbyshire''], in: ''The Every-day Book and Table Book; or, Everlasting Calendar of Popular Amusements, Sports, Pastimes, Ceremonies, Manners, Customs, and Events, Each of the Three Hundred and Sixty-Five Days, in Past and Present Times; Forming a Complete History of the Year, Months, and Seasons, and a Perpetual Key to the Almanac, Including Accounts of the Weather, Rules for Health and Conduct, Remarkable and Important Anecdotes, Facts, and Notices, in Chronology, Antiquities, Topography, Biography, Natural History, Art, Science and General Literature; Derived from the Most Authentic Sources, and Valuable Original Communication, with Poetical Elucidations, for Daily Use and Diversion. Vol III.'', ed. William Hone, (London: 1838) p&nbsp;11–16. Retrieved on 24 June 2008.</ref>

In 1979, the continual battle to maintain the [[A625 road]] ([[Sheffield]] to [[Chapel en le Frith]]) on the crumbling eastern side of the hill was lost when the road officially closed as a through-route, with the Fox House to Castleton section of the road being re-designated as the [[A6187 road|A6187]].

The hill is crowned by a late [[Bronze Age]] and early [[Iron Age]] [[univallate hill fort]], and two Bronze Age [[bowl barrow]]s.<ref name="nhle">{{National Heritage List for England |num=1011206 |desc=Slight univallate hillfort and two bowl barrows on Mam Tor|access-date=15 February 2014}}</ref> At the base of the Tor and nearby are four show caves: [[Blue John Cavern]], [[Speedwell Cavern]], [[Peak Cavern]] and [[Treak Cliff Cavern]] where [[lead]], [[Derbyshire Blue John|Blue John]], [[fluorspar]] and other minerals were once mined. Mam Tor was declared to be one of the [[Seven Wonders of the Peak]] by [[Thomas Hobbes]] in his 1636 book ''De Mirabilibus Pecci''.<ref>{{Cite web|url=https://www.wondersofthepeak.org.uk/objects/2-36/|title=De Mirabilibus Pecci: Being the Wonders of the Peak in Darby-shire|website=www.wondersofthepeak.org.uk|access-date=2020-04-29}}</ref>