Charlton Kings is an affluent suburb of Cheltenham in Gloucestershire, England. The area constitutes a civil parish with a population of just over 10,000 residents. Famed for being the location of the mirror which inspired the author, Lewis Carroll, to write the story Through the Looking-Glass, the mirror remains displayed in a Charlton Kings residence. Located in the Cotswolds, an Area of Outstanding Natural Beauty, the surroundings of Charlton Kings are protected by natural conservation directives. Lineover Wood SSSI lies on the Cotswold District side of the eastern boundary. Charlton Kings Common and Leckhampton Hill are also designated as SSSIs by Natural England. The River Chelt enters the suburb of Charlton Kings from an easterly direction. The Cotswold Way National Trail is on its eastern boundary and runs alongside Dowdeswell Reservoir and Woodland.