A Neolithic timber trackway preserved in the low‐lying peats of the Somerset levels, extensively excavated by John and Bryony Coles between 1970 and 1982. At least 1.8 km of trackway is known, leading from the dry land of Westhay Island down into the wetland and reed swamp of the levels. Built mainly of oak planks supported on stakes driven down into the peat, dendrochronology shows that the main structure was built in the winter of 3807 and the spring of 3806 bc. This makes the site Europe's oldest known trackway.
B. Coles and J. Coles, 1986, Sweet Track to Glastonbury. London: Thames & Hudson