The Winter Hill Transmitting Station is a broadcasting and telecommunications site on Winter Hill. It is situated at the southern boundary of Chorley and above Bolton. It can easily be seen from the motorway.
It is one of the tallest structures in the UK. The mast is 310 metres tall with a diameter of 2.75 metres. It is 778.1 metres above sea level and is therefore the highest television transmitting antenna in the country.