Site name
Reason for designation
Area
Location & map ref
Year in which notified
Other designations
Map/Refs
Biological interest
Geological interest
Hectares
Acres
Allington Meadows
Y
3.8
9.3
52°56′53″N 0°42′25″W / 52.948°N 0.707°W / 52.948; -0.707 (Allington Meadows ) SK870397
1987
Map [ 2]
Ancaster Valley
Y
10.3
25.4
52°58′30″N 0°31′59″W / 52.975°N 0.533°W / 52.975; -0.533 (Ancaster Valley ) SK986430
1951
WT , NCR
Map [ 3]
Bardney Limewoods
Y
539.8
1,333.9
53°14′49″N 0°17′06″W / 53.247°N 0.285°W / 53.247; -0.285 (Bardney Limewoods, Lincolnshire ) TF145736
1959
NNR , NCR ,
Map [ 4]
Baston And Thurlby Fens
Y
54.6
134.9
52°44′10″N 0°20′06″W / 52.736°N 0.335°W / 52.736; -0.335 (Baston And Thurlby Fens ) TF125167
1968
WT , NCR , SAC
Map [ 5]
Belshaw
Y
0.2
0.5
53°32′38″N 0°50′31″W / 53.544°N 0.842°W / 53.544; -0.842 (Belshaw ) SE768059
1988
Map [ 6]
Benniworth Haven Cuttings
Y
2.4
5.9
53°19′26″N 0°09′43″W / 53.324°N 0.162°W / 53.324; -0.162 (Benniworth Haven Cuttings ) TF225824
1966
GCR
Map [ 7]
Bratoft Meadows
Y
2.3
5.6
53°09′07″N 0°13′05″E / 53.152°N 0.218°E / 53.152; 0.218 (Bratoft Meadows ) TF484639
1968
WT , NCR
Map [ 8]
Broughton Alder Wood
Y
0.8
2
53°34′37″N 0°33′07″W / 53.577°N 0.552°W / 53.577; -0.552 (Broughton Alder Wood ) SE960099
1986
Map [ 9]
Broughton Far Wood
Y
17.8
44
53°34′59″N 0°33′04″W / 53.583°N 0.551°W / 53.583; -0.551 (Broughton Far Wood ) SE960106
1957
Map [ 10]
Calceby Marsh
Y
8.8
21.8
53°16′23″N 0°05′38″E / 53.273°N 0.094°E / 53.273; 0.094 (Calceby Marsh ) TF397772
1970
WT , NCR
Map [ 11]
Candlesby Hill Quarry
Y
1.8
4.5
53°11′28″N 0°11′02″E / 53.191°N 0.184°E / 53.191; 0.184 (Candlesby Hill ) TF460682
1966
WT
Map [ 12]
Castle Bytham Quarry
Y
5.5
13.6
52°45′00″N 0°32′10″W / 52.75°N 0.536°W / 52.75; -0.536 (Castle Bytham Quarry ) SK989179
1981
GCR
Map [ 13]
Castlethorpe Tufas
Y
0.5
1.3
53°33′25″N 0°31′30″W / 53.557°N 0.525°W / 53.557; -0.525 (Castlethorpe Tufas ) SE978077
1989
GCR
Map [ 14]
Chapel Point-wolla Bank
Y
39.7
98.0
53°14′31″N 0°20′10″E / 53.242°N 0.336°E / 53.242; 0.336 (Chapel Point-Wolla Bank ) TF560742
2002
GCR
Map [ 15]
Claxby Chalk Pit
Y
Y
2.2
5.5
53°13′23″N 0°10′12″E / 53.223°N 0.17°E / 53.223; 0.17 (Claxby Chalk Pit ) TF450717
1968
GCR , WT
Map [ 16]
Cleatham Quarry
Y
5.8
14.2
53°30′04″N 0°35′02″W / 53.501°N 0.584°W / 53.501; -0.584 (Cleatham Quarry ) SE940014
1986
Map [ 17]
Cliff Farm Pit
Y
1.1
2.8
53°29′42″N 0°34′59″W / 53.495°N 0.583°W / 53.495; -0.583 (Cliff Farm Pit ) SE941008
1985
GCR
Map [ 18]
Cliff House
Y
4.8
11.7
53°26′46″N 0°32′56″W / 53.446°N 0.549°W / 53.446; -0.549 (Cliff House ) SK965953
1966
Map [ 19]
Copper Hill
Y
6.6
16.4
52°58′19″N 0°32′42″W / 52.972°N 0.545°W / 52.972; -0.545 (Copper Hill ) SK978426
1950
GCR
Map [ 20]
Conesby (Yorkshire East) Quarry
Y
0.9
2.2
53°37′19″N 0°38′10″W / 53.622°N 0.636°W / 53.622; -0.636 (Conesby (Yorkshire East) Quarry ) SE903148
1995
GCR
Map [ 21]
Cowbit Wash
Y
9.1
22.4
52°45′18″N 0°09′50″W / 52.755°N 0.164°W / 52.755; -0.164 (Cowbit Wash ) TF240191
1999
GCR
Map [ 22]
Cross Drain
Y
5.7
14.2
52°42′32″N 0°17′02″W / 52.709°N 0.284°W / 52.709; -0.284 (Cross Drain ) TF160137
1991
Map [ 23]
Crowle Borrow Pits
Y
4.9
12.2
53°35′10″N 0°48′29″W / 53.586°N 0.808°W / 53.586; -0.808 (Crowle Borrow Pits ) SE790106
1986
Map [ 24]
Dalby Hill
Y
0.2
0.5
53°12′14″N 0°06′25″E / 53.204°N 0.107°E / 53.204; 0.107 (Dalby Hill ) TF408695
1986
GCR
Map [ 25]
Deeping Gravel Pits
Y
57.6
142.3
52°39′32″N 0°15′36″W / 52.659°N 0.26°W / 52.659; -0.26 (Deeping Gravel Pits ) TF178082
1968
Wildlife refuge
Map [ 26]
Doddington Clay Woods
Y
23.9
59.0
53°13′41″N 0°39′07″W / 53.228°N 0.652°W / 53.228; -0.652 (Doddington Clay Woods ) SK901710
1987
Map [ 27]
Dole Wood
Y
4.0
9.8
52°43′55″N 0°23′10″W / 52.732°N 0.386°W / 52.732; -0.386 (Dole Wood ) TF091161
1968
WT
Map [ 28]
Dunsby Wood
Y
54.6
134.8
52°49′12″N 0°23′06″W / 52.82°N 0.385°W / 52.82; -0.385 (Dunsby Wood ) TF089259
1968
Map [ 29]
Eastoft Meadow
Y
0.8
2.1
53°37′05″N 0°48′47″W / 53.618°N 0.813°W / 53.618; -0.813 (Eastoft Meadow ) SE786142
1985
Map [ 30]
Epworth Turbary
Y
32.9
81.3
53°31′34″N 0°51′50″W / 53.526°N 0.864°W / 53.526; -0.864 (Epworth Turbary ) SE754039
1951
WT
Map [ 31]
Fulsby Wood
Y
109.3
270.0
53°08′02″N 0°07′26″W / 53.134°N 0.124°W / 53.134; -0.124 (Fulsby Wood ) TF256613
1986
Map [ 32]
Gibraltar Point
Y
598.2
1,478.3
53°06′11″N 0°19′59″E / 53.103°N 0.333°E / 53.103; 0.333 (Gibraltar Point ) TF563587
1951
Bird sanctuary, SPA , GCR , LNR , WT , NNR , NCR , Ramsar site , SAC
Map [ 33]
Gosling's Corner
Y
10.2
25.1
53°15′43″N 0°17′20″W / 53.262°N 0.289°W / 53.262; -0.289 (Gosling'S Corner ) TF142752
1988
Map [ 34]
Great Casterton Road Banks
Y
0.4
1
52°39′47″N 0°30′54″W / 52.663°N 0.515°W / 52.663; -0.515 (Great Casterton Road Banks ) TF005083
1959
WT
Map [ 35]
Greetwell Hollow Quarry
Y
59.3
146.6
53°14′10″N 0°29′49″W / 53.236°N 0.497°W / 53.236; -0.497 (Greetwell Hollow Quarry ) TF004721
1951
GCR
Map [ 36]
Grimsthorpe Park
Y
116.4
287.7
52°45′47″N 0°29′13″W / 52.763°N 0.487°W / 52.763; -0.487 (Grimsthorpe Park ) TF022194
1969
SAC ,
Map [ 37]
Hainton Sheepwalk
Y
2.5
6.3
53°21′32″N 0°13′19″W / 53.359°N 0.222°W / 53.359; -0.222 (Hainton Sheepwalk ) TF184861
1989
Map [ 38]
Harrington Hall Sand Pit
Y
0.1
0.2
53°13′37″N 0°02′13″E / 53.227°N 0.037°E / 53.227; 0.037 (Harrington Hall Sand Pit ) TF361719
1986
GCR
Map [ 39]
Hatfield Chase Ditches
Y
44.2
109.2
53°32′31″N 0°53′17″W / 53.542°N 0.888°W / 53.542; -0.888 (Hatfield Chase Ditches ) SE738056
1999
Map [ 40]
Haxey Grange Fen
Y
13.3
32.8
53°27′58″N 0°53′24″W / 53.466°N 0.89°W / 53.466; -0.89 (Haxey Grange Fen ) SK738972
1988
Map [ 41]
Haxey Turbary
Y
14.4
35.6
53°30′29″N 0°52′26″W / 53.508°N 0.874°W / 53.508; -0.874 (Haxey Turbary ) SE748018
1951
WT
Map [ 42]
Hewson's Field
Y
0.5
1.2
53°29′10″N 0°49′05″W / 53.486°N 0.818°W / 53.486; -0.818 (Hewson'S Field ) SK785995
1991
Map [ 43]
High Barn, Oxcombe
Y
8.3
20.4
53°16′16″N 0°01′16″W / 53.271°N 0.021°W / 53.271; -0.021 (High Barn, Oxcombe ) TF321767
1966
Map [ 44]
High Dyke
Y
6.8
16.7
53°02′28″N 0°31′30″W / 53.041°N 0.525°W / 53.041; -0.525 (High Dyke ) SK990503
1951
Map [ 45]
Holywell Banks
Y
6.1
15.1
52°43′48″N 0°31′44″W / 52.73°N 0.529°W / 52.73; -0.529 (Holywell Banks ) SK994157
1951
Map [ 46]
Honington Camp
Y
1.4
3.5
52°58′12″N 0°34′52″W / 52.97°N 0.581°W / 52.97; -0.581 (Honington Camp ) SK954423
1968
SAM
Map [ 47]
Hoplands Wood
Y
14.2
35.0
53°13′16″N 0°11′02″E / 53.221°N 0.184°E / 53.221; 0.184 (Hoplands Wood ) TF459715
1966
WT
Map [ 48]
Horbling Fen
Y
15.1
37.3
52°54′07″N 0°17′24″W / 52.902°N 0.29°W / 52.902; -0.29 (Horbling Fen ) TF151352
1999
GCR
Map [ 49]
Humber Estuary
Y
Y
37,000.6
91,430.5
53°34′41″N 0°01′48″E / 53.578°N 0.03°E / 53.578; 0.03 (Humber Estuary ) TA345110
2004
SPA , GCR , MOD , NNR , Ramsar site , SAC
Map [ 50]
Hundleby Clay Pit
Y
0.8
1.9
53°10′23″N 0°03′58″E / 53.173°N 0.066°E / 53.173; 0.066 (Hundleby Clay Pit ) TF382660
1986
GCR ,
Map [ 51]
Jenkins Carr
Y
3.7
9.1
53°09′22″N 0°04′23″E / 53.156°N 0.073°E / 53.156; 0.073 (Jenkins Carr ) TF387641
1966
Map [ 52]
Keal Carr
Y
9.4
23.1
53°09′43″N 0°03′58″E / 53.162°N 0.066°E / 53.162; 0.066 (Keal Carr ) TF382648
1968
WT
Map [ 53]
Kingerby Beck Meadows
Y
5.5
13.6
53°25′41″N 0°25′05″W / 53.428°N 0.418°W / 53.428; -0.418 (Kingerby Beck Meadows ) TF052935
1988
Map [ 54]
Kirkby Moor
Y
73.6
181.9
53°08′38″N 0°10′12″W / 53.144°N 0.17°W / 53.144; -0.17 (Kirkby Moor ) TF225623
1966
WT ,
Map [ 55]
Kirmington Pits
Y
9.1
22.5
53°35′20″N 0°20′06″W / 53.589°N 0.335°W / 53.589; -0.335 (Kirmington Pits ) TA103116
1951
GCR
Map [ 56]
Kirton Wood, Lincolnshire
Y
30.3
74.9
52°52′55″N 0°32′42″W / 52.882°N 0.545°W / 52.882; -0.545 (Kirton Wood, Lincolnshire ) SK980326
1968
NCR
Map [ 57]
Langtoft Gravel Pits
Y
28.4
70.3
52°41′02″N 0°21′22″W / 52.684°N 0.356°W / 52.684; -0.356 (Langtoft Gravel Pits ) TF112109
1968
Map [ 58]
Laughton Common
Y
54.7
135.2
53°27′36″N 0°44′28″W / 53.46°N 0.741°W / 53.46; -0.741 (Laughton Common ) SK837967
1999
Map [ 59]
Lea Marsh
Y
27.6
68.1
53°22′26″N 0°46′19″W / 53.374°N 0.772°W / 53.374; -0.772 (Lea Marsh ) SK818870
1998
Map [ 60]
Linwood Warren
Y
25.7
63.5
53°22′19″N 0°18′07″W / 53.372°N 0.302°W / 53.372; -0.302 (Linwood Warren ) TF131875
1966
WT
Map [ 61]
Little Scrubbs Meadow
Y
2.0
4.9
53°15′11″N 0°17′02″W / 53.253°N 0.284°W / 53.253; -0.284 (Little Scrubbs Meadow ) TF146743
1988
WT
Map [ 62]
Manton and Twigmoor
Y
88.9
219.6
53°31′34″N 0°34′59″W / 53.526°N 0.583°W / 53.526; -0.583 (Manton and Twigmoor ) SE940042
1951
Map [ 63]
Manton Stone Quarry
Y
17.5
43.2
53°30′36″N 0°35′02″W / 53.51°N 0.584°W / 53.51; -0.584 (Manton Stone Quarry ) SE940024
1986
GCR
Map [ 64]
Math And Elsea Wood
Y
44.2
109.3
52°45′04″N 0°22′34″W / 52.751°N 0.376°W / 52.751; -0.376 (Math And Elsea Wood ) TF097183
1988
Map [ 65]
Mavis Enderby Valley
Y
15.7
38.8
53°10′52″N 0°02′17″E / 53.181°N 0.038°E / 53.181; 0.038 (Mavis Enderby Valley ) TF363668
1988
Map [ 66]
Messingham Heath
Y
17.8
43.9
53°31′08″N 0°40′55″W / 53.519°N 0.682°W / 53.519; -0.682 (Messingham Heath ) SE875033
1965
Map [ 67]
Messingham Sand Quarry
Y
51.8
128
53°31′12″N 0°37′34″W / 53.52°N 0.626°W / 53.52; -0.626 (Messingham Sand Quarry ) SE912035
1987
WT
Map [ 68]
Metheringham Heath Quarry
Y
12.8
31.5
53°08′24″N 0°25′37″W / 53.14°N 0.427°W / 53.14; -0.427 (Metheringham Heath Quarry ) TF053615
1981
GCR
Map [ 69]
Moor Closes
Y
6.8
16.8
52°58′59″N 0°32′31″W / 52.983°N 0.542°W / 52.983; -0.542 (Moor Closes ) SK980438
1968
WT , NCR ,
Map [ 70]
Moor Farm
Y
47.0
116.1
53°09′25″N 0°10′30″W / 53.157°N 0.175°W / 53.157; -0.175 (Moor Farm ) TF221638
1981
WT
Map [ 71]
Muckton Wood
Y
16.7
41.3
53°18′32″N 0°04′16″E / 53.309°N 0.071°E / 53.309; 0.071 (Muckton Wood ) TF381811
1953
WT
Map [ 72]
Nettleton Chalk Pit
Y
8.1
20.0
53°28′05″N 0°18′25″W / 53.468°N 0.307°W / 53.468; -0.307 (Nettleton Chalk Pit ) TF125981
1968
GCR
Map [ 73]
New England Valley
Y
6.3
15.7
53°14′31″N 0°00′04″E / 53.242°N 0.001°E / 53.242; 0.001 (New England Valley ) TF336735
1966
Map [ 74]
Normanby Meadow
Y
4.2
10.3
53°23′28″N 0°27′32″W / 53.391°N 0.459°W / 53.391; -0.459 (Normanby Meadow ) TF026893
2002
Map [ 75]
North Killingholme Haven Pits
Y
21.6
53.4
53°39′40″N 0°14′13″W / 53.661°N 0.237°W / 53.661; -0.237 (North Killingholme Haven Pits ) TA166197
1996
WT , SPA
Map [ 76]
Porter's Lodge Meadows
Y
9.6
23.8
52°45′54″N 0°34′37″W / 52.765°N 0.577°W / 52.765; -0.577 (Porter'S Lodge Meadows ) SK961196
1988
Map [ 77]
Potterhanworth Wood
Y
33.1
81.7
53°11′17″N 0°23′49″W / 53.188°N 0.397°W / 53.188; -0.397 (Potterhanworth Wood ) TF072668
1968
Forest nature reserve, NCR
Map [ 78]
Red Hill
Y
3.0
7.5
53°18′29″N 0°06′14″W / 53.308°N 0.104°W / 53.308; -0.104 (Red Hill ) TF264807
1951
LNR , WT ,
Map [ 79]
Robert's Field
Y
3.0
7.5
52°43′23″N 0°31′15″W / 52.723°N 0.5208°W / 52.723; -0.5208 (Robert's Field ) TF000150
LNR , WT ,
[ 80]
Risby Warren
Y
Y
157.1
388.2
53°36′36″N 0°36′32″W / 53.61°N 0.609°W / 53.61; -0.609 (Risby Warren ) SE921135
1966
GCR , NCR ,
Map [ 81]
Rush Furlong
Y
0.5
1.2
53°29′42″N 0°49′34″W / 53.495°N 0.826°W / 53.495; -0.826 (Rush Furlong ) SE780004
1985
WT
Map [ 82]
Ryhall Pasture and Little Warren Verges
Y
6.2
15.4
52°42′43″N 0°29′42″W / 52.712°N 0.495°W / 52.712; -0.495 (Ryhall Pasture And Little Warren Verges ) TF018138
1983
Map [ 83]
Saltfleetby-Theddlethorpe Dunes National Nature Reserve
Y
971.9
2,401.5
53°23′56″N 0°13′30″E / 53.399°N 0.225°E / 53.399; 0.225 (Saltfleetby - Theddlethorpe Dunes ) TF480914
1951
NNR , NCR , SAC
Map [ 84]
Sapperton & Pickworth Woods
Y
28.1
69.3
52°53′42″N 0°28′19″W / 52.895°N 0.472°W / 52.895; -0.472 (Sapperton & Pickworth Woods ) TF029342
1968
Map [ 85]
Scotton And Laughton Forest Ponds
Y
48.3
119.4
53°28′59″N 0°42′22″W / 53.483°N 0.706°W / 53.483; -0.706 (Scotton And Laughton Forest Ponds ) SK860992
1959
Map [ 86]
Scotton Beck Fields
Y
16.8
41.4
53°28′44″N 0°40′55″W / 53.479°N 0.682°W / 53.479; -0.682 (Scotton Beck Fields ) SK876988
1987
Map [ 87]
Scotton Common
Y
15.1
37.3
53°28′30″N 0°41′31″W / 53.475°N 0.692°W / 53.475; -0.692 (Scotton Common ) SK869984
1951
WT ,
Map [ 88]
Sea Bank Clay Pits
Y
16.6
40.9
53°17′17″N 0°17′49″E / 53.288°N 0.297°E / 53.288; 0.297 (Sea Bank Clay Pits ) TF532792
1959
WT ,
Map [ 89]
Silverines Meadows
Y
6.2
15.3
53°17′28″N 0°06′40″W / 53.291°N 0.111°W / 53.291; -0.111 (Silverines Meadows ) TF260788
1959
WT
Map [ 90]
Skendleby Psalter Banks
Y
0.9
2.2
53°13′19″N 0°09′18″E / 53.222°N 0.155°E / 53.222; 0.155 (Skendleby Psalter Banks ) TF440716
1966
WT
Map [ 91]
Sotby Meadows
Y
7.2
17.8
53°17′02″N 0°11′49″W / 53.284°N 0.197°W / 53.284; -0.197 (Sotby Meadows ) TF203779
1981
WT
Map [ 92]
South Ferriby Chalk Pit
Y
85
209.9
53°40′01″N 0°29′10″W / 53.667°N 0.486°W / 53.667; -0.486 (South Ferriby Chalk Pit ) TA001200
1987
GCR
Map [ 93]
Surfleet Lows
Y
3.4
8.5
52°50′24″N 0°08′38″W / 52.84°N 0.144°W / 52.84; -0.144 (Surfleet Lows ) TF251286
1968
WT
Map [ 94]
Swaby Valley
Y
3.4
8.4
53°16′37″N 0°05′06″E / 53.277°N 0.085°E / 53.277; 0.085 (Swaby Valley ) TF391776
1966
WT
Map [ 95]
Swallow Wold
Y
4.3
10.6
53°31′37″N 0°14′24″W / 53.527°N 0.24°W / 53.527; -0.24 (Swallow Wold ) TA168048
1966
Map [ 96]
Swanholme Lakes
Y
53.1
131.3
53°12′18″N 0°35′24″W / 53.205°N 0.59°W / 53.205; -0.59 (Swanholme Lakes ) SK943685
1985
LNR , NCR
Map [ 97]
Swinstead Valley
Y
8.9
22.0
52°47′N 0°31′W / 52.79°N 0.51°W / 52.79; -0.51 (Swinstead Valley ) TF006224
1989
Map [ 98]
Tattershall Carrs
Y
26.6
65.7
53°06′47″N 0°11′06″W / 53.113°N 0.185°W / 53.113; -0.185 (Tattershall Carrs ) TF216589
1968
Map [ 99]
Tattershall Old Gravel Pits
Y
14.5
35.9
53°07′08″N 0°12′47″W / 53.119°N 0.213°W / 53.119; -0.213 (Tattershall Old Gravel Pits ) TF197595
1951
Map [ 100]
Tetford Wood
Y
5.4
13.3
53°15′47″N 0°00′25″W / 53.263°N 0.007°W / 53.263; -0.007 (Tetford Wood ) TF330758
1951
Map [ 101]
Tetney Blow Wells
Y
14.7
36.4
53°29′10″N 0°00′43″W / 53.486°N 0.012°W / 53.486; -0.012 (Tetney Blow Wells ) TA320006
1968
WT
Map [ 102]
The Hermitage
Y
4.4
10.9
52°49′37″N 0°30′14″W / 52.827°N 0.504°W / 52.827; -0.504 (The Hermitage ) TF009265
1968
SAM ,
Map [ 103]
The Wash
Y
62,045.8
153,318.5
52°56′28″N 0°15′11″E / 52.941°N 0.253°E / 52.941; 0.253 (The Wash ) TF515405
1972
SPA , WT , NNR , NCR , Ramsar site , RSPB
Map [ 104]
Thorne Crowle and Goole Moors
Y
1919
4742.1
53°37′59″N 0°54′04″W / 53.633°N 0.901°W / 53.633; -0.901 (Thorne Crowle and Goole Moors ) SE728157
1970
SPA , WT , NNR , NCR , Ramsar site , SAC
Map [ 105]
Tortoiseshell Wood
Y
9.3
22.9
52°46′05″N 0°34′34″W / 52.768°N 0.576°W / 52.768; -0.576 (Tortoiseshell Wood ) SK962199
1987
WT , NCR
Map [ 106]
Troy Wood
Y
91.1
225.1
53°06′43″N 0°08′17″W / 53.112°N 0.138°W / 53.112; -0.138 (Troy Wood ) TF247588
1951
Map [ 107]
Tuetoes Hills
Y
12.5
30.8
53°30′11″N 0°43′44″W / 53.503°N 0.729°W / 53.503; -0.729 (Tuetoes Hills ) SE844014
1999
Map [ 108]
Welton-le-wold Old Gravel Pits
Y
3.4
8.4
53°22′37″N 0°04′37″W / 53.377°N 0.077°W / 53.377; -0.077 (Welton-Le-Wold Old Gravel Pits ) TF280884
1986
GCR
Map [ 109]
Wickenby Wood
Y
43.6
107.6
53°19′48″N 0°22′52″W / 53.33°N 0.381°W / 53.33; -0.381 (Wickenby Wood ) TF079827
1976
Forest nature reserve, NCR
Map [ 110]
Willoughby Meadow
Y
0.5
1.3
53°13′01″N 0°12′11″E / 53.217°N 0.203°E / 53.217; 0.203 (Willoughby Meadow ) TF472712
1968
WT
Map [ 111]
Willoughby Wood
Y
23.2
57.4
53°12′47″N 0°11′10″E / 53.213°N 0.186°E / 53.213; 0.186 (Willoughby Wood ) TF461707
1951
Map [ 112]
Wilsford & Rauceby Warrens
Y
57.4
141.9
52°58′44″N 0°28′01″W / 52.979°N 0.467°W / 52.979; -0.467 (Wilsford & Rauceby Warrens ) TF030435
1968
WT
Map [ 113]
Wilsford Heath Quarry
Y
16.2
40.0
52°57′36″N 0°32′02″W / 52.96°N 0.534°W / 52.96; -0.534 (Wilsford Heath Quarry ) SK986413
1968
Map [ 114]
Winceby Rectory Pit
Y
<0.1
0.1
53°11′49″N 0°01′30″W / 53.197°N 0.025°W / 53.197; -0.025 (Winceby Rectory Pit ) TF320685
1987
GCR
Map [ 115]
Withcall And South Willingham Tunnels
Y
3.8
9.4
53°19′41″N 0°10′48″W / 53.328°N 0.18°W / 53.328; -0.18 (Withcall And South Willingham Tunnels ) TF213828
2002
Map [ 116]
Woodhall Spa Golf Course
Y
55.0
135.8
53°09′43″N 0°11′31″W / 53.162°N 0.192°W / 53.162; -0.192 (Woodhall Spa Golf Course ) TF210643
1969
Map [ 117]
Woodnook Valley
Y
9.7
23.8
52°52′48″N 0°36′43″W / 52.88°N 0.612°W / 52.88; -0.612 (Woodnook Valley ) SK935323
1968
Map [ 118]
Wrawby Moor
Y
18.5
45.6
53°35′06″N 0°26′38″W / 53.585°N 0.444°W / 53.585; -0.444 (Wrawby Moor ) TA031109
1966
Map [ 119]