Snowdon is a mountain in Gwynedd, Wales. The mountain has five peaks—Yr Wyddfa, Crib-y-Ddysgul, Crib Goch, Lliwedd, and Yr Aran. Yr Wyddfa, rising to 3,560 feet (1,085 meters) above sea level, is the highest peak in Wales and England. Snowdon is surrounded by 845 square miles (2,190 square kilometers) of national park called Snowdonia.