Original: The Cotswolds are a range of hills in west-central England, sometimes called the "Heart of England", an area 25 m across and 90 m long. The area has been designated as the Cotswold Area of Outstanding Natural Beauty.
Simplified: The Cotswolds is a range of hills in central England, sometimes called the "Heart of England", a hilly area reaching over 300 m/O. The area has been designated as Area of Outstanding Natural Beauty.