Request a survey square

Please email Oliver Pescott (ash-survey@ceh.ac.uk) if you would like to request one or more of the core ash dieback monads (1 x 1 km grid squares) from the list below.

Additional monads (in Britain or Ireland) can also be selected based on your own knowledge of the distribution of ash in your area; again, please notify ash-survey@ceh.ac.uk of these selections.

Interactive monad map

The markers on the interactive map below map the south-west corners of the core monads. Click the points for vice-county information.

 

Table of monads

The OS grid references in the table below link to PDF maps of the core monads (1 x 1 km squares) and their surrounding monads. The core monad is centered and marked with a point. The map consists of the OS 1:25,000 backdrop with an overlaid 'land cover map' developed from data from the 2007 Countryside Survey. These maps are intended to assist surveyors in targeting broad-leaved woodland in the core monads and their surrounds.

The land cover map overlays are unlikely to be 100% accurate in their classifications, so please be aware of this.

        Monad taken?   Core square suitable for survey?
Vice-county number Vice-county name OS Grid Reference Bryophytes      Lichens Vascular plants
1 West Cornwall with Scilly SW7028        
1 West Cornwall with Scilly SW7838        
1 West Cornwall with Scilly SW6443        
2 East Cornwall SX0048        
2 East Cornwall SS2311        
2 East Cornwall SX1356        
3 South Devon SX7689        
3 South Devon SX5472   Y Y  
3 South Devon SY1397        
3 South Devon SX6161        
4 North Devon SX4884   Y Y  
4 North Devon SS4401   Y Y  
4 North Devon SS8812 Y   Y  
4 North Devon SX4993        
5 South Somerset SS8547        
5 South Somerset ST1639        
5 South Somerset ST1437        
6 North Somerset ST7839        
6 North Somerset ST6362        
6 North Somerset ST7034        
7 North Wiltshire ST9569     Y  
7 North Wiltshire SU2168     Y  
7 North Wiltshire SU2765     Y  
8 South Wiltshire SU0030        
8 South Wiltshire SU2321        
8 South Wiltshire ST8042        
8 South Wiltshire SU0321        
9 Dorset SY5396        
9 Dorset ST8912        
9 Dorset SU0610        
9 Dorset ST5606        
10 Isle of Wight Z5294        
10 Isle of Wight SZ5490        
10 Isle of Wight SZ4084        
11 South Hampshire SU2604   Y    
11 South Hampshire SU2911   Y    
11 South Hampshire SU3728   Y    
11 South Hampshire SU3402   Y    
12 North Hampshire SU6161   Y    
12 North Hampshire SU7959   Y    
12 North Hampshire SU2447   Y    
12 North Hampshire SU4762   Y    
13 West Sussex SU9213        
13 West Sussex TQ0022        
13 West Sussex SU9906        
13 West Sussex TQ0223        
13 West Sussex SU9931        
14 East Sussex TQ3033        
14 East Sussex TQ4832        
14 East Sussex TQ5223        
14 East Sussex TQ7920        
14 East Sussex TQ4432        
15 East Kent TR0351 Y Y    
15 East Kent TR0451 Y Y    
15 East Kent TR0958 Y Y    
16 West Kent TQ7232 Y Y    
16 West Kent TQ7133 Y Y    
16 West Kent TQ7129        
16 West Kent TQ6142 Y Y    
17 Surrey SU9832        
17 Surrey TQ1350        
17 Surrey TQ1149        
17 Surrey TQ1345        
17 Surrey SU9156        
18 South Essex TL6302        
18 South Essex TQ5682 Y Y Y  
19 North Essex TL8517        
19 North Essex TL6634        
20 Hertfordshire TQ0798        
20 Hertfordshire TQ1393        
21 Middlesex TQ1693        
21 Middlesex TQ0587        
22 Berkshire SU4467     Y  
22 Berkshire SP4607        
23 Oxfordshire SU7186 Y     Y
23 Oxfordshire SP4120 Y   Y  
23 Oxfordshire SU6890 Y      
24 Buckinghamshire SU7686        
24 Buckinghamshire SP8305        
24 Buckinghamshire SP7700        
25 East Suffolk TM5283        
25 East Suffolk TM2143     Y  
26 West Suffolk TL7881        
26 West Suffolk TL8060        
27 East Norfolk TG3318 Y   Y  
27 East Norfolk TG3429 Y   Y  
28 West Norfolk TF6724        
28 West Norfolk TL9094        
29 Cambridgeshire TL6554   Y    
30 Bedfordshire SP9358   Y    
30 Bedfordshire TL1018        
31 Huntingdonshire TL3081 Y Y    
31 Huntingdonshire TL2254 Y Y    
32 Northamptonshire SP9184 Y?   Y  
32 Northamptonshire SP8050 Y? Y Y  
32 Northamptonshire SP8456 Y?      
33 East Gloucestershire SO9810        
33 East Gloucestershire SO9113        
33 East Gloucestershire SO9013   Y    
34 West Gloucestershire SO6308   Y   N?
34 West Gloucestershire SO6104        
34 West Gloucestershire SO5411        
34 West Gloucestershire SO6208        
35 Monmouthshire ST4992        
35 Monmouthshire ST5194        
36 Herefordshire SO7237        
36 Herefordshire SO3948        
36 Herefordshire SO6039        
37 Worcestershire SO7576        
37 Worcestershire SO6772 Y   Y  
37 Worcestershire SO9975     Y  
38 Warwickshire SP4858 Y   Y  
38 Warwickshire SP0998 Y      
39 Staffordshire SK0048 Y   Y  
39 Staffordshire SK0015        
39 Staffordshire SO8185        
40 Shropshire SJ6308 Y   Y  
40 Shropshire SO4089        
40 Shropshire SJ5413     Y  
41 Glamorganshire SN8505        
41 Glamorganshire SN7704        
42 Breconshire SN9209        
42 Breconshire SO0109        
43 Radnorshire SO2872        
44 Carmarthenshire SN4025        
44 Carmarthenshire SN7647        
45 Pembrokeshire SN0824        
45 Pembrokeshire SN1338        
46 Cardiganshire SN6795        
46 Cardiganshire SN7178        
47 Montgomeryshire SJ2621        
47 Montgomeryshire SN9290        
48 Merionethshire SH7820     Y  
48 Merionethshire SH6541     Y  
49 Caernarvonshire SH7553        
49 Caernarvonshire SH7953        
50 Denbighshire SJ1156        
50 Denbighshire SH8158        
51 Flintshire SJ1177        
52 Anglesey SH5478 Y Y Y  
53 South Lincolnshire SK8656        
53 South Lincolnshire TF0418        
54 North Lincolnshire TA0111        
54 North Lincolnshire TF1474        
55 Leicestershire (with Rutland) SK3714        
55 Leicestershire (with Rutland) SK4715 Y Y Y N
55 Leicestershire (with Rutland) SK9516 Y? Y? Y N
56 Nottinghamshire SK6069        
56 Nottinghamshire SK8555        
56 Nottinghamshire SK6261        
57 Derbyshire SK1772        
57 Derbyshire SK4061        
57 Derbyshire SK5170        
58 Cheshire SJ7291 Y   Y  
58 Cheshire SJ2981     Y  
59 South Lancashire SD7605        
59 South Lancashire SD7903        
60 West Lancashire SD6064        
61 South-east Yorkshire TA1367        
61 South-east Yorkshire SE9364        
62 North-east Yorkshire SE9092        
62 North-east Yorkshire NZ8803        
62 North-east Yorkshire SE6285        
63 South-west Yorkshire SE5207        
63 South-west Yorkshire SK3182        
64 Mid-west Yorkshire SD7666        
64 Mid-west Yorkshire SE2044 Y Y Y N
65 North-west Yorkshire NZ1505        
65 North-west Yorkshire SE1591        
66 County Durham NZ3644        
66 County Durham NZ1861     Y  
67 South Northumberland NZ1266   Y    
67 South Northumberland NZ1498        
68 North Northumberland NU0801   Y    
68 North Northumberland NU0701        
69 Westmorland (with Furness) SD3886        
69 Westmorland (with Furness) SD3788        
70 Cumberland NY2514   Y    
71 Isle of Man SC4095        
72 Dumfriesshire NT1101        
73 Kirkcudbrightshire NX6871     Y  
74 Wigtownshire NX0943        
75 Ayrshire NS5626        
76 Renfrewshire NS3764        
77 Lanarkshire NS7571        
78 Peebleshire NT2640        
79 Selkirkshire NT3937        
80 Roxburghshire NT8031        
81 Berwickshire NT6338        
82 East Lothian NT7372        
83 Midlothian NT3157        
84 West Lothian NT1579        
85 Fifeshire NT0492        
86 Stirlingshire NS8782 Y   Y  
87 West Perthshire NN6408 Y   Y  
88 Mid Perthshire NN8359 Y   Y  
89 East Perthshire NO2635        
90 Angus NO5552        
91 Kincardineshire NO6396        
92 South Aberdeenshire NJ6321        
93 North Aberdeenshire NJ4833        
94 Banffshire NJ3749        
95 Moray NJ2365        
96 East Inverness-shire NH8409        
97 West Inverness-shire NN1776        
98 Argyllshire NN0033        
99 Dunbartonshire NS2494        
100 Clyde Isles NS0528        
101 Kintyre NR8958        
102 South Ebudes NR3264        
103 Mid Ebudes NM6324       N
104 North Ebudes NG4734        
105 West Ross & Cromarty NH1877 Y   Y  
106 East Ross & Cromarty NH7875     Y  
107 East Sutherland NC7103        
108 West Sutherland NC2322        
109 Caithness ND1430        
110 Outer Hebrides NB4134