The Post Track is an ancient causeway in the valley of the River Brue on the Somerset Levels, England.
It dates from around 3838 BCE,[1] making it some 30 years older than the Sweet Track in the same area.
[3][4][5][6] The timber trackway was constructed of long ash planks, with lime and hazel posts spaced along three-metre intervals.
It is likely that the route was intended to be a permanent fixture, with the track being updated, maintained, and eventually replaced as it succumbed to the elements.
[11] Some of the wood planks also were reused in the Sweet Track when it was built making the specific dating more complex.