Thomas Telford (1757 –1834) was a Scottish civil engineer and lived in the nearby house during the design and construction of the Anglesey section of the A5 road. When you are standing at GZ look up to see the blue plaque.
During the rebuilding of the Holyhead to London road a new embankment, designed by Thomas Telford, was constructed across the Cymyran Strait to Holyhead. Prior to its construction the fastest route to Holyhead from the Anglesey mainland was via the old stone bridge at Four Mile Bridge. Construction started in 1822 and was completed a year later and was named the Stanley Embankment, after the notable family but became known locally as the Cob.
The nickname Colossus of Roads was given to Telford by his friend and eventual poet Laureate, Robert Southey.
This cache is a very easy find placed mainly to draw people's attention to the blue plaque
Bring your own pen, tweezers may be required.