The Great North Road was the main highway between England and Scotland from medieval times until the 20th century. It became a coaching route used by mail coaches between London, York and Edinburgh.
At Alconbury, the Great North Road joined the Old North Road, an older route which followed the Roman Ermine Street. Here a milestone records mileages to London via both routes: 65 by the Old North Road and 68 by the Great North Road. From Alconbury the Great North Road follows the line of Ermine Street north, passed Sawtry, through Stilton, and crosses the River Nene at Wansford.
This cache is located just off the Old North Road on the outskirts of Sawtry village, off road parking within 25 yards of the cache so park up there and take the short walk.