Blick Mead is a chalkland spring in Wiltshire, England, separated by the River Avon from the northwest edge of the town of Amesbury.

[3] It is thought that the site would have been an attractive place to camp or dwell, with a spring that never freezes over; the issuing water has a constant temperature of around 11 °C (52 °F).

Oxygen isotope analysis of a single canine premolar found at Blick Mead has been interpreted as evidence that people had travelled a long way to get there and that this was associated with its proximity to Stonehenge.

[6] A rare algae called Hildenbrandia lives in the spring and causes stones taken from it to turn bright red on exposure to air in a matter of hours.

Its closeness to Stonehenge has led to theories that it is the attraction that first brought hunters to the area, with the colour-changing stones giving the place a spiritual significance.