The principal river in the town is the Yarrow.
The Black Brook is a tributary of the Yarrow.
The name of the River Chor was back-formed from "Chorley" and runs not far from the centre of the town, notably through Astley Park.
Chorley is located at the foot of the West Pennine Moors and is overlooked by Healey Nab, a small hill which is part of the West Pennine Moors.
It is the seat for the Borough of Chorley which is made up of Chorley and its surrounding villages.

Chorley had a population of 33,424 at the 2001 census, with the wider borough of Chorley having a population of 101,991.
Chorley forms a conurbation with Preston and Leyland and was once proposed as being designated part of the Central Lancashire New Town under the New Towns Act, a proposal which was eventually scaled back.
The principal river in the town is the Yarrow. The Black Brook is a tributary of the Yarrow. The name of the River Chor was back-formed from "Chorley" and runs not far from the centre of the town, notably through Astley Park. Chorley is located at the foot of the West Pennine Moors and is overlooked by Healey Nab, a small hill which is part of the West Pennine Moors. It is the seat for the Borough of Chorley which is made up of Chorley and its surrounding villages.
Chorley had a population of 33,424 at the 2001 census, with the wider borough of Chorley having a population of 101,991. Chorley forms a conurbation with Preston and Leyland and was once proposed as being designated part of the Central Lancashire New Town under the New Towns Act, a proposal which was eventually scaled back.
Chorley