There are 35 AONBs in England, four in Wales, one (Wye Valley) that is in both England and Wales and nine in Northern Ireland. The first AONB was awarded in 1956 to the Gower Peninsula, south Wales. The most recently confirmed is the Tamar Valley AONB in 1994. The smallest AONB is the Isles of Scilly (1976), , and the largest AONB is the Cotswolds (1966), . The AONBs of England and Wales together cover around 18% of the countryside in the two countries.