Butterfly Conservation - saving butterflies, moths and our environment
Butterfly Conservation
Hertfordshire & Middlesex Branch
Saving butterflies, moths and our environment

Butterfly Mapping 2015 - 2019

Butterfly mapping is probably the most enjoyable form of recording there is.

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Butterfly mapping is an enjoyable form of recording. It should be done in fine, warm weather, and it gets you to different places you would never otherwise think of visiting, and gives you the best opportunity of making important discoveries. site in far-flung corners of the countryside.

In 2017, we have several 2km or part 2km squares with no records since 2014. We would encourage as many recorders to visit these under-recorded areas of Hertfordshire and Middlesex this year.

Look at an Ordnance Survey map to see exactly what access is available in each square. The first reference e.g. TL1622 is the 1 Km square in the bottom left corner in the block of 4 that makes up a 2km square. The second reference e.g. TL12R is an alternative way of describing the square. Please let Andrew Wood (details on Committee page) if you will visit a specific square to avoid duplication of effort.

A part square is where some of this area is in an adjacent county, but the records are just as important, so don't stop at the county border (we will send the records on to the relevant branch)! The map also shows some grey circles without records where only a minute portion of the area is within our branch area - these are not shown in list below but could still be visited!

The squares are as follows - click on the link in the column to Streetmap, where the arrow will show the centre of the 2km square (you can visit the four 1km squares surrounding the arrow):

Click here to see where all the 2km squares are on Google Maps

2km square

Streetmap Link

General Location

Volunteer/visited


SP8816 (SP81Y)

Link

North of Long Marston (part square)


SP9814 (SP91X)

Link

North of Little Gaddesden (part square)


TL0600 (TL00Q)

Link

West of Hunton Bridge



TL0612 TL01R

Link

South east of Flamstead


TL0814 (TL01X)

Link

Between Flamstead and Kinsbourne Green



TL1006 (TL10D)

Link

Gorehambury


TL1418 (TL11P)

Link

East of Peter's Green



TL1622 (TL12R)

Link

South east of King's Walden


TL2406 (TL20N)

Link

Woodside



TL2606 (TL20T)

Link

Wildhill



TL2238 (TL23J)

Link

Caldecote (part square)



TL2436 (TL23N)

Link

Newnham, west of Bygrave



TL3632 (TL33R)

Link

South east of Buckland/north of Wyddial



TL3840 (TL34V)

Link

East of Royston (part square)



TL4212 (TL41G)

Link

South east of Hunsdon

One visit



TL4216 (TL41I)

Link

Perry Green



TL4416 (TL41N)

Link

Allen's Green



TL4418 (TL41P)

Link

Green Tye



TL4620 (TL42Q)

Link

West of and western Bishops Stortford



TQ2098 (TQ29E)

Link

North east of Borehamwood



TQ3694 (TQ39S)

Link

Ponders End/Lea Valley (part square)2 km




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