List of Sites of Special Scientific Interest in North Yorkshire

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Pen-y-ghent in North Yorkshire

This is a list of the Sites of Special Scientific Interest (SSSIs) in North Yorkshire, England, United Kingdom. In England the body responsible for designating SSSIs is Natural England, which chooses a site because of its fauna, flora, geological or physiographical features.[1] As of 2006, there are 241 sites designated within this Area of Search.[2] 162 sites have been designated due to their biological interest, 56 due to their geological interest, and 23 for both.

Natural England took over the role of designating and managing SSSIs from English Nature in October 2006 when it was formed from the amalgamation of English Nature, parts of the Countryside Agency and the Rural Development Service. Natural England, like its predecessor, uses the 1974–1996 county system[3] and as such the same approach is followed here, rather than, for example, merging all Yorkshire sites into a single list. Some sites you may expect to find here could therefore be in either the Cleveland or the Humberside lists.

For other counties, see List of SSSIs by Area of Search. The data in the table is taken from Natural England's website in the form of citation sheets for each SSSI.

Sites[edit]

Site name Reason for designation Area[A] Grid reference[B] Year in which notified Map[C] Citation[D]
Biological interest Geological interest Hectares Acres
Acaster South Ings Green tickY 38.3 94.6 SE594437 1988 Map [1]
Angram Bottoms Green tickY 9.8 24.2 NY891999 1989 Map [2]
Arkengarthdale, Gunnerside and Reeth Moors Green tickY 7,634.7 18,865.4 NY935070 & SD970990 1998 Map [3]
Arkle Beck Meadows, Whaw Green tickY 8.4 20.8 NY984041 1986 Map [4]
Arnecliff and Park Hole Woods Green tickY 52.5 129.7 NZ787048 2000 Map [5]
Ashberry and Reins Wood Green tickY 97.7 241.5 SE565850 1960 Map [6]
Ashes Pasture and Meadows Green tickY 14.3 34.3 SD776785 1983 Map [7]
Askham Bog Green tickY Green tickY 44.7 110.7 SE570480 1961 Map [8]
Askrigg Bottoms Green tickY Green tickY 2.8 6.9 SD948903 1984 Map [9]
Attermire Green tickY 57.5 142.1 SD842637 1955 Map [10]
Aubert Ings Green tickY 10.6 26.3 SE453538 1984 Map [11]
Austwick and Lawkland Mosses Green tickY 83.6 206.6 SD762665 1958 Map [12]
Aysgarth Green tickY 18.3 45.1 SE008886SE021888 1992 Map [13]
Bastow Wood Green tickY 52.0 128.6 SD990657 1975 Map [14]
Beck Dale Meadow Green tickY 2.2 5.4 SE767659 2002 Map [15]
Beck Hole Green tickY 70.5 174.2 NZ825020 1960 Map [16]
Bellerby Fields Green tickY 2.8 6.9 SE114932 1994 Map [17]
Betton Farm Quarries Green tickY 2.3 5.6 TA002856 1954 Map [18]
Biller Howe Dale Green tickY 85.0 210.1 NZ918013 1983 Map [19]
Birkham Wood Green tickY 28.2 69.6 SE359551 1988 Map [20]
Birks Fell Caves Green tickY 85.5 211.2 SD935765 1989 Map [21]
Birkwith Caves and Fell Green tickY Green tickY 178.4 440.8 SD806766 1988 Map [22]
Bishop Monkton Ings Green tickY 38.8 95.9 SE344659 1986 Map [23]
Black Keld Catchment Green tickY 1401.3 3461.2 SE010700 1999 Map [24]
Black Scar Quarry Green tickY 1.1 2.8 NZ231052 1992 Map [25]
Blaiskey Bank Springs Green tickY 1.4 3.5 SE625887 1989 Map [26]
Bolton Percy Ings Green tickY 7.1 17.5 SE534401 1991 Map [27]
Boreham Cave Green tickY 159.4 393.9 SD926732 1986 Map [28]
Botton Head Green tickY 5.1 12.6 NZ596020 1984 Map [29]
Brants Gill Catchment Green tickY 493.2 1218.2 SD823733, SD825717 & SD850700 1986 Map [30]
Breighton Meadows Green tickY 37.4 90.6 SE704330 1986 Map [31]
Bride Stones Green tickY Green tickY 120.5 297.7 SE873910 1952 Map [32]
Brimham Rocks Green tickY 162.7 402.0 SE212647 1958 Map [33]
Brockadale Green tickY 58.3 144.0 SE503174 1961 Map [34]
Broughton Bank Green tickY 4.6 11.3 NZ568035 1981 Map [35]
Bull Ings Green tickY 3.0 7.5 SE753880 1983 Map [36]
Burr Closes, Selby Green tickY 1.3 3.1 SE596340 1984 Map [37]
Burton Leonard Lime Quarry Green tickY 3.3 8.2 SE323630 1958 Map [38]
Castle Hill Wood Green tickY 5.7 11.1 SE585831 1983 Map [39]
Castlebeck and Scar Woods Green tickY 36.6 90.5 SE947974 1954 Map [40]
Cawthorn Moor Green tickY 38.3 94.6 SE781923 1990 Map [41]
Caydale Green tickY 163.6 404.2 SE530870 2004 Map [42]
Cayton, Cornelian and South Bays Green tickY 169.8 419.5 TA600860 1984 Map [43]
Chris's Pasture Green tickY 3.8 9.4 SD964890 1991 Map [44]
Church Ings Green tickY 6.7 16.5 SD594456 1991 Map [45]
Cliff Beck Meadow, Buttertubs Green tickY 1.5 3.7 SD880967 1986 Map [46]
Cliff Force Cave Green tickY 70.9 175.4 SD875960 1998 Map [47]
Cliff Ridge Green tickY 2.6 6.4 NZ575116 1988 Map [48]
Clints Quarry Green tickY 1.0 2.5 SD967575 1955 Map [49]
Cockerham Meadows, Thorpe Green tickY 2.5 6.2 SD998616 1987 Map [50]
Cocket Moss Green tickY 20.0 50.0 SD787618 1955 Map [51]
Cockrah Wood Green tickY 11.9 29.4 SE970882 1950 Map [52]
Conistone Old Pasture Green tickY Green tickY 297.2 734.4 SD990670 1955 Map [53]
Cow Cliff Pasture and Quarry Green tickY 1.3 3.3 SE856669 1984 Map [54]
Cow Myers Green tickY 15.2 37.5 SE270730 1983 Map [55]
Cracoe Reef Knolls Green tickY 141.1 348.6 SD988603, SD996609, SE003608, SE007615, SE015614 & SE026618 1952 Map [56]
Cropton Banks and Howlgate Head Woods Green tickY 42.2 104.3 SE745875 1985 Map [57]
Dalby Bush Fen Green tickY 7.4 18.3 SE645715 1988 Map [58]
Deepdale Meadows, Langstrothdale Green tickY 12.8 31.6 SD889797 1988 Map [59]
Derwent Ings Green tickY 662.4 1,636.9 SE703466SE703347 1975 Map [60]
Dow Cave System Green tickY 79.4 196.2 SD989735 1987 Map [61]
Duncombe Park Green tickY 117.8 291.2 SE607828 1985 Map [62]
East Heslerton Brow Green tickY 40.7 100.6 SE926757 1954 Map [63]
East Keswick Fitts Green tickY 12.0 29.6 SE352460 1989 Map [64]
East Nidderdale Moors (Flamstone Pin - High Ruckles) Green tickY 10,776.9 26,619.1 SE112854SE177665 1996 Map [65]
Eller's Wood and Sand Dale Green tickY 8.9 21.9 SE856848 1983 Map [66]
Ellerburn Bank Green tickY 2.9 7.2 SE853848 1983 Map [67]
Eskamhorn Meadows Green tickY 13.7 33.8 SE679242 2010 Map [68]
Fairy Call Beck Green tickY 1.8 4.5 SE711903 1992 Map [69]
Far Mains and Far Limekiln Close Meadows Green tickY 2.1 5.1 SD992628 1986 Map [70]
Farndale Green tickY 157.3 388.8 SE670963 1987 Map [71]
Farnham Mires Green tickY 10.2 25.1 SE338605 1954 Map [72]
Feetham Holme Green tickY 3.2 7.8 SD994977 1984 Map [73]
Filey Brigg Green tickY 27.9 68.9 TA126816 1985 Map [74]
Foredale Green tickY 1.6 4.0 SD803700 1990 Map [75]
Forlorn Hope Meadow Green tickY 1.6 4.0 SE543171 1991 Map [76]
Fothering Holme Green tickY 10.3 25.5 NY991040 1989 Map [77]
Freeholders Wood Green tickY 14.0 34.6 SE013889 1988 Map [78]
Fulford Ings Green tickY 12.7 31.3 SE608491 1991 Map [79]
Giggleswick Scar and Kinsey Cave Green tickY Green tickY 40.1 99.1 SD876665SD802657 1958 Map [80]
Gingerfields Green tickY 6.9 17.0 NZ162025 & NZ167022 1991 Map [81]
Golden Hill Pit Green tickY 0.7 1.7 SE724827 1990 Map [82]
Gormire Green tickY 54.0 133.5 SE505834 1954 Map [83]
Gouthwaite Reservoir Green tickY 147.7 365.0 SE129693 1969 Map [84]
Gowerdale Windy Pits/Peak Scar Green tickY Green tickY 4.7 11.6 SE518889, SE526885 & SE529883 1960 Map [85]
Grass Wood Green tickY 88.0 217.5 SD985655 1955 Map [86]
Grassington Hospital Grounds Green tickY 5.0 12.4 SE017635 1988 Map [87]
Great Almscliff Crag Green tickY 7.9 19.4 SE268490 1987 Map [88]
Green Lane Pit Green tickY 1.1 2.6 SE732837 1988 Map [89]
Greenfield Meadow Green tickY 15.1 37.3 SD833794 1985 Map [90]
Greenhow Pasture Green tickY 7.2 17.8 SE118640 1983 Map [91]
Greenhow Quarry Green tickY 2.7 6.6 SE113639 1992 Map [92]
Gristhorpe Bay and Red Cliff Green tickY 54.4 134.4 TA085840 1954 Map [93]
Hack Fall Wood Green tickY 42.4 104.7 SE235772 1989 Map [94]
Hackness Head Quarry Green tickY 3.0 7.4 SE965904 1954 Map [95]
Hackness Rock Pit Green tickY 0.1 0.3 SE965907 1992 Map [96]
Hambleton Quarry Green tickY 12.3 30.3 SE058533 1991 Map [97]
Harker's House Meadows Green tickY 14.2 35.1 NY860019 1985 Map [98]
Harwood Dale Moor Green tickY 0.4 1.1 SE961991 1999 Map [99]
Haugh and Gundale Slacks Green tickY 58.7 145.0 SE797886, SE800880, SE807882, SE804871 & SE802863 1985 Map [100]
Haw Crag Quarry Green tickY 9.0 23.3 SD913564 1958 Map [101]
Hawkswick Wood Green tickY 12.0 29.0 SD946714 1975 Map [102]
Hay-a-park Green tickY 44.9 111.0 SE362581 1995 Map [103]
Hayburn Wyke Green tickY Green tickY 21.0 51.9 TA012968 1958 Map [104]
Hesley Moss Green tickY 10.9 27.1 SD783602 1993 Map [105]
Heslington Tillmire Green tickY 46.7 115.3 SE638475 1990 Map [106]
Hill House Nab Green tickY 4.0 9.9 SE659993 1984 Map [107]
Hole of Horcum Green tickY Green tickY 145.2 358.8 SE845935 1954 Map [108]
Holy Well, Bridge Green tickY 1.7 4.2 SE028533 1986 Map [109]
Horse Field, Gilling Green tickY 2.1 5.2 SE626758 1985 Map [110]
Ingleborough Green tickY Green tickY 5,230.0 12,923.4 SD760740 1955 Map [111]
Iron Scar and Hundale Point to Scalby Ness Green tickY Green tickY 125.3 309.6 TA017964, TA021957TA036908 1984 Map [112]
Jeffry Bog Green tickY 7.6 18.8 SE760667 & SE761664 1983 Map [113]
Keasden Moor Green tickY 10.2 25.2 SD725664 1989 Map [114]
Kettlewell Meadows Green tickY 12.3 30.3 SD960734 1986 Map [115]
Kildale Hall Green tickY 6.6 16.2 NZ609096 1993 Map [116]
Kilnsey Flush Green tickY 1.5 3.7 SD972675 1986 Map [117]
Kirk Deighton Green tickY 4.0 9.9 SE398501 2000 Map [118]
Kirkby Wharfe Green tickY 21.7 53.7 SE510400 1984 Map [119]
Kirkdale Cave Green tickY 0.3 0.7 SE678856 1960 Map [120]
Kirkham Park & Riverside Green tickY 41.1 101.5 SE737667 1954 Map [121]
Kisdon Force Woods Green tickY 38.0 94.0 NY900009 1974 Map [122]
Ladyhills Green tickY 3.5 8.8 SE912723 1993 Map [123]
Langcliffe Scars and Jubilee, Albert and Victoria Caves Green tickY 684.9 1692.4 SD845642 1955 Map [124]
Len Pastures, Crackpot Green tickY 4.0 9.9 SD975968 1989 Map [125]
Leyburn Glebe Green tickY 2.6 6.5 SE101896 1983 Map [126]
Ling Gill Green tickY 5.1 12.6 SD801785 1985 Map [127]
Littlebeck Wood Green tickY 17.3 42.8 NZ881045 1983 Map [128]
Lord's Wood and Pasture Green tickY 6.4 15.8 SD813647 1990 Map [129]
Lovely Seat - Stainton Moor Green tickY 10,128.7 25,017.8 SD863933SE114946 1995 Map [130]
Low Gill Moor Wetlands Green tickY 62.9 155.4 SD962874 1990 Map [131]
Low Pasture Green tickY 10.5 25.9 SE539893 1987 Map [132]
Lower Swaledale Woods and Grasslands Green tickY 223.7 552.7 NZ120014 1992 Map [133]
Malham-Arncliffe Green tickY Green tickY 4,933.9 12,191.7 SD920676 1955 Map [134]
Malham-Arncliffe (Cool Pasture) Green tickY 6.2 15.2 SD967677 1995 Map [135]
Mallerstang-Swaledale Head Green tickY 6,232.3 15,400.0 NY840000 1964 Map [136]
Mar Field Fen Green tickY 8.9 22.0 SE223819 1988 Map [137]
Marsett Rigg Green tickY 8.0 19.8 SD900860 1985 Map [138]
Meadow Croft, Skythorns Green tickY 0.4 0.9 SD979639 1985 Map [139]
Meal Bank Quarry Green tickY 7.2 17.7 SD698735 1958 Map [140]
Mill Holme Meadow, Thwaite Green tickY 0.6 1.5 SD897980 1986 Map [141]
Mount Pleasant Quarry Green tickY 1.0 2.5 SE734670 1954 Map [142]
Muker Meadows Green tickY 15.6 38.5 SD914978 1988 Map [143]
Nabgate Green tickY 6.7 16.5 SE866847 1987 Map [144]
Naburn Marsh Green tickY 13.3 32.9 SE600479 1992 Map [145]
New Close, Calvert Houses Green tickY 6.6 19.3 SD920987 1986 Map [146]
New House Meadows, Malham Green tickY 8.8 21.7 SD933643 1990 Map [147]
Newbridge Quarry Green tickY 7.1 17.5 SE797861 1984 Map [148]
Newby Moor Green tickY 276.8 684.0 SD717692 1990 Map [149]
Newsome Bridge Quarry Green tickY 1.6 4.0 SE379511 1970 Map [150]
Newton-le-willows Meadows Green tickY 4.2 10.5 SE212893 & SE215892 1994 Map [151]
Newtondale Green tickY Green tickY 935.5 2,311.1 SE820915 1955 Map [152]
Nine Spring Dale Green tickY 4.5 11.2 SE868693 1959 Map [153]
Noddle End Green tickY 9.5 23.5 SE528888 1987 Map [154]
North Bay to South Toll House Cliff Green tickY 10.4 25.1 TA048893, TA051894, TA046892 & TA048892 1954 Map [155]
North York Moors Green tickY Green tickY 44,087.7 108,940.6 SE4996SE7192 & NZ9500NZ6910 1998 Map [156]
Nunnington Cutting and Quarries Green tickY 5.6 13.8 SE646785 & SE648787 1984 Map [157]
Oughtershaw and Beckermonds Green tickY 75.9 187.6 SD870810 1985 Map [158]
Ox Close Green tickY 140.1 346.2 SD982908SD992899 1985 Map [159]
Oxenber and Wharfe Woods Green tickY 88.4 218.3 SD785685 1955 Map [160]
Pan Beck Fen Green tickY 2.5 6.1 SD848559 1985 Map [161]
Park Hall Meadows, Healaugh, Richmondshire Green tickY 6.8 16.8 SE017989 1985 Map [162][4]
Pen Y Ghent Gill Green tickY Green tickY 215.6 532.7 SD870740 1986 Map [163]
Pen-y-ghent Green tickY Green tickY 1,456.9 3,600.0 SD850740 1955 Map [164]
Pikedaw Calamine Caverns Green tickY Green tickY 27.1 66.9 SD875640 1958 Map [165]
Pilmoor Green tickY 45.0 111.2 SE460730 1992 Map [166]
Pry and Bottom Meadows, Mid-mossdale Green tickY 3.6 8.8 SD833917SD837919 1984 Map [167]
Quarry Moor Green tickY 7.5 18.8 SE309693 1986 Map [168]
Raincliffe & Forge Valley Woods Green tickY 95.6 236.2 SE986870 1956 Map [169]
Richmond Meadows Green tickY 2.9 7.1 NZ169000 & NZ176007 1995 Map [170]
Rievaulx Woods Green tickY 17.0 42.0 SE578847 1954 Map [171]
Ripon Parks Green tickY 130.0 321.0 SE310750 1983 Map [172]
River Derwent Green tickY - - SE678287SE825757 1986 Map [173]
River Ribble (Long Preston Deeps) Green tickY 168.8 417.2 SD809621SD827570 1987 Map [174]
River Ure Bank, Ripon Parks Green tickY 1.9 4.6 SE310750SE307757 1988 Map [175]
River Ure Grasslands Green tickY 18.5 45.8 SE147870SE157862, SE017889 & SD985856 1986 Map [176]
River Wharfe Green tickY 48.3 119.4 SD940773SD973711 1985 Map [177]
Robin Hood's Bay: Maw Wyke to Beast Cliff Green tickY Green tickY 365.2 902.4 NZ941082TA005987 1954–-74 Map [178]
Runswick Bay Green tickY 9.9 24.4 NZ809169 1984 Map [179]
Ruston Cottage Pasture Green tickY 17.1 42.3 SE956835 1984 Map [180]
Ryedale Windypits Green tickY 11.2 27.7 SE576836, SE582829 & SE588828 1960 Map [181]
Salt Lake Quarry Green tickY 3.6 8.9 SD773785 1975 Map [182]
Scar Closes, Kisdon Side Green tickY 3.7 9.1 NY893000 1988 Map [183]
Scar End Wood Green tickY 27.4 67.7 SE785990 1983 Map [184]
School Share Section Green tickY 2.4 6.0 SD845623 1952 Map [185]
Scoska Wood Green tickY 68.9 170.3 SD915725 1975 Map [186]
Seato Pastures Green tickY Green tickY 9.9 24.5 SD729761 1990 Map [187]
Seive Dale Fen Green tickY 10.4 26.7 SE855877 1983 Map [188]
Semerwater Green tickY 101.4 250.6 SD913865 1975 Map [189]
Shaw Beck Gill Green tickY 29.1 77.9 NZ000037NZ011059 1977 Map [190]
Shaw's Gate Quarry Green tickY 1.6 3.9 SE524823 1984 Map [191]
Sherburn Willows Green tickY 5.3 13.1 SE487325 1985 Map [192]
Sked Dale Green tickY 3.6 8.9 SE969751 1954 Map [193]
Skipwith Common Green tickY 293.0 724.0 SE655373 1958 Map [194]
Sleightholme Dale Green tickY 28.7 71.0 SE666885 1986 Map [195]
Snape Hill Quarry Green tickY 0.6 1.5 SE509787 1984 Map [196]
Snaper Farm Meadows Green tickY 15.9 39.3 SE597912 1990 Map [197]
South Pennine Moors Green tickY Green tickY 20,938 51,738.7 SD920300 1994 Map [198]
Spell Howe Plantation Green tickY 4.3 10.6 TA064790 1986 Map [199]
Spiker's Hill Quarry Green tickY 6.4 15.8 SE980862 1991 Map [200]
Spring Wood, Hawnby Green tickY 42.4 104.7 SE524896 1984 Map [201]
Staithes - Port Mulgrave Green tickY 62.3 154.1 NZ784189NZ797175 1984 Map [202]
Stephen Ings, Crackpot Green tickY 3,089 7,630 SD976965 1986 Map [203]
Stonehead Beck (Gill Beck) Green tickY 0.6 1.4 SD947432 1986 Map [204]
Stonepit and Nova Slacks Green tickY 12.2 30.1 SE883652 1986 Map [205]
Stran's Gill Green tickY 7.8 19.3 SD916786 1990 Map [206]
Strensall Common Green tickY 578.7 1,430.1 SE650600 1965 Map [207]
Strid Wood Green tickY 58.9 145.6 SE070560 1985 Map [208]
Stump Cross Caves Green tickY 55.8 137.9 SE092635 1989 Map [209]
Stutton Ings Green tickY 5.1 12.7 SE485405 1986 Map [210]
Swale Lakes Green tickY 42.5 105.0 SE248985 1986 Map [211]
Swarth Moor Green tickY 34.1 85.2 SD806695 1958 Map [212]
Swinden Quarry Green tickY Green tickY 112.1 276.9 SD980616 1998 Map [213]
Swineley Meadow, Widdale Green tickY 8.8 21.7 SD802859 1984 Map [214]
Tadcaster Mere Green tickY 8.7 21.5 SE500430 1987 Map [215]
The Ings, Amotherby Green tickY 18.0 44.6 SE759752 1994 Map [216]
Thixen Dale and Longdale Green tickY 89.7 221.5 SE831600, SE843606 & SE845593 1954 Map [217]
Thornton and Twisleton Glens Green tickY 59.6 147.2 SD695745 & SD705745 1958 Map [218]
Thowker Corner Green tickY 1.4 3.5 SE081904 1990 Map [219]
Three Dykes Green tickY 0.6 1.4 SE804683 1962 Map [220]
Thwaite Stones Green tickY 17.6 43.5 SD895989 1984 Map [221]
Tranmire Green tickY 11.0 27.2 NZ770120 1985 Map [222]
Tripsdale Green tickY 1,013 2,503 SE585995 1965 Map [223]
Troutsdale and Rosekirk Dale Fens Green tickY 13.1 32.3 SE900876 & SE903879 1984 Map [224]
Upper Dunsforth Carrs Green tickY 10.2 25.1 SE442628 1984 Map [225]
Upper Nidderdale Green tickY 137.2 347.2 SE102755 1961 Map [226]
Upper Wharfedale Green tickY Green tickY 1,123.0 2,773.9 SD965735 1994 Map [227]
Vessey Pasture Dale and Back Dale Green tickY 26.8 66.2 SE832622 1985 Map [228]
Walden Meadows Green tickY 12.0 29.7 SE005823 1986 Map [229]
Wanlass Grasslands Green tickY 67.1 165.8 SE065893 & SE054898 1986 Map [230]
Waterdale Green tickY 36.3 90.0 SE820617 1954 Map [231]
Wath Quarry Green tickY 0.1 0.3 SE673750 1991 Map [232]
West End Meadow, Lunds Green tickY 3.7 9.1 SD792295 1986 Map [233]
West Nidderdale, Barden and Blubberhouses Moors Green tickY 13,418.9 33,144.8 SE080705SD985580SE170510 1998 Map [234]
Wharram Quarry Green tickY 6.4 16.0 SE860653 1984 Map [235]
Whernside Green tickY Green tickY 3,839.4 9,487.1 SD735802 1958 Map [236]
Whitby-Saltwick Green tickY 42.4 104.7 NZ901115NZ916109 1985 Map [237]
Whitcliffe Section, Quarry Moor Green tickY 0.1 0.2 SE307692 1998 Map [238]
Whitfield Gill and Mill Gill Green tickY 18.7 46.2 SD920932SD908945 1998 Map [239]
Wintringham Marsh Green tickY 5.7 14.0 SD875734 1975 Map [240]
Yockenthwaite Meadows Green tickY 11.2 27.7 SD912786 1986 Map [241]

Notes[edit]

A Data rounded to one decimal place.
B Grid reference is based on the British national grid reference system, also known as OSGB36, and is the system used by the Ordnance Survey.[5]
C Link to maps using the Nature on the Map service provided by English Nature.
D English Nature citation sheets for each SSSI. Retrieved 8 May 2011.

References[edit]

  1. ^ "Notification of SSSIs". Natural England. Retrieved 17 June 2011. 
  2. ^ "SSSIs in Cleveland". Natural England. Retrieved 17 June 2011. 
  3. ^ "County search of SSSIs". English Nature. Retrieved 17 June 2011. 
  4. ^ The grid reference given in the citation is SD012989 but it should be SE017989
  5. ^ "Guide to National Grid". Ordnance Survey. Retrieved 8 May 2011.