Extreme points of Wales

This is a list of the extreme points and extreme elevations in Wales.

Wales

Middle Mouse (Ynys Badrig) as seen from Anglesey (Ynys Môn)

• Northernmost point – Middle Mouse, off Anglesey at 53°26′N 4°26′W
• Northernmost settlement – Llanlleiana, Anglesey at 53°25′N 4°25′W
• Southernmost point – Flat Holm, Cardiff, off Lavernock Point, Vale of Glamorgan at 51°22′N 3°7′W
• Southernmost settlement – Rhoose, Vale of Glamorgan at 51°23′N 3°20′W
• Westernmost point – The Smalls, Pembrokeshire
• Westernmost settlement – Treginnis, Pembrokeshire at 51°52′N 5°18′W
• Easternmost point – Lady Park Wood, near Monmouth, Monmouthshire at 51°49′N 2°39′W
• The easternmost point of North Wales is a section of the Red Brook (which runs North-South into the Shropshire Union Canal near Whixall Mosses) at 52°57'24.8"N 2°43'26.7"W
• Easternmost settlement – Chepstow, Monmouthshire at 51°37′N 2°39′W

Wales (mainland)

Chepstow showing border

• Northernmost point – Point of Ayr, Flintshire at 53°21′N 3°19′W
• Northernmost settlement – Talacre, Flintshire at 53°21′N 3°19′W
• Southernmost point – Breaksea Point, Vale of Glamorgan at 51°22′N 3°24′W
• Southernmost settlement – Rhoose, Vale of Glamorgan at 51°23′N 3°20′W
• Westernmost point – Pen Dal-aderyn, Pembrokeshire at 51°51′N 5°19′W
• Westernmost settlement – Treginnis, Pembrokeshire at 51°52′N 5°18′W
• Easternmost point – Lady Park Wood, near Monmouth, Monmouthshire at 51°49′N 2°39′W
• Easternmost settlement – Chepstow, Monmouthshire at 51°37′N 2°39′W

Centre point

Main article: Centre points of the United Kingdom

The centre point of Wales is dependent on whether only the mainland is used for calculation or outlying islands as well.

One centre point is calculated to be near Cwmystwyth, Devil's Bridge, Ceredigion (52°19′48.791″N 3°45′59.072″W; grid reference SN7972871704)^[1]

Elevation extremes

Snowdon seen from Llyn Llydaw

Main article: List of mountains in Wales

• Wales: Snowdon (Yr Wyddfa) in Snowdonia (Eryri) - 1,085 m (3,560 ft)

Many points are on, or near sea level, but due to high rainfall, there are no natural dry pieces of land below sea level - see rivers and lakes below.

Rivers and lakes

See also: List of rivers of Wales

The largest natural lake in Wales is Bala Lake (Llyn Tegid). Llangorse Lake is second largest by area.

The River Usk is the longest river to flow wholly within Wales. The table below lists Wales' longest rivers^[2] including (in italics) those only partly in Wales.

	River	Total length		Length in Wales
		(miles)	(km)	(miles)	(km)
1	River Severn	220	354	48[3]	77
2	River Wye[4]	155	250
3	River Teme[5]	81	130	12	19
4	River Usk[6]	78	125	78	125
5	River Teifi[7]	76	122	76	122
6	River Towy[8]	75	120	75	120
7	River Dee[9]	70	112
8	River Taff	40	64	40	64

See also

• Centre points of the United Kingdom
• Geography of Wales
• Extreme points of the British Isles