A geoglyph in the UK features in this article on April 20th 2017 Where to See Five of the Planet’s Most Mysterious Geoglyphs in the Smithsonian Magazine.
The Oxford dictionary defines geoglyph as – A large-scale image or design produced in the natural landscape by techniques such as aligning rocks or gravel or removing soil or sod, the complete form of which is visible only aerially or at a distance.
It’s surprising and pleasing that the Uffington White Horse in Oxfordshire is regarded as one of the five most mysterious geoglyphs. Research into the age of the Uffington White Horse considers it to have been created between 1200 BC and 800 BC, making it over 3,000 years old. There’s more about the White Horse at Wiltshire White Horses, and the National Trust. Below is a NASA satellite image of the Uffington White Horse.