Sites for National Grid Square: SN

The map below shows sites for this grid square, each represented by a pin that, when clicked, will show the species at that site. The Grid References provided in the table below the map can be used on Ordnance Survey maps, or on a website such as www.streetmap.co.uk. This is currently more accurate than the Google Map rendering you see below (which is up to 200 metres out).

The Grid Square represented by this map is often divided into squares of 10 kilometres each, numbered 0 to 9 from the south west corner, in both an easterly and northerly direction. This allows a Grid Reference such as SU32 to be specified (where SU is the National Grid Square, 3 is the easting and 2 the northing). Further division gives a more detailed reference, such as SU317201 (where SU is the National Grid Square, 317 is the easting and 201 is the northing).

Distribution data (2000-2009) has been made available through the generosity of Butterfly Conservation. Any subspecies distribution is taken from the book British and Irish Butterflies, by Adrian Riley. Based on this data, the following species and subspecies may be found in this grid square:

In the table below, the icon links to a Google search based on the site name, and the and icons (where present) link, respectively, to Google Maps and Streetmap representations of the grid reference.

Site Name	Grid Reference	Species	Subtaxon
Caeau Ffos Fach	SN576120	Marsh Fritillary
Coed Allt Fedw	SN667729	Grayling	ssp. semele
		Silver-washed Fritillary
		Small Pearl-bordered Fritillary
Cwm Soden	SN36605790	Pearl-bordered Fritillary
Gwrelych Valley	SN89220634	Common Blue	ssp. icarus
		Meadow Brown	ssp. insularis
		Small Blue
Llangrannog	SN31505420	Green Hairstreak
Pembrey Country Park	SN40500050	Green Hairstreak
		Marbled White
		Silver-washed Fritillary
Rhos Pilbach	SN367528	Marsh Fritillary
Welsh Wildlife Centre	SN18304480	Brown Hairstreak
		Purple Hairstreak
West Williamston Salt Marshes	SN03300580	Brown Hairstreak
		Comma
		Silver-washed Fritillary
		Small Tortoiseshell
		Wall
Ynys-Hir	SN683963	Dark Green Fritillary
		Pearl-bordered Fritillary
		Purple Hairstreak
		Silver-washed Fritillary
		Small Pearl-bordered Fritillary