The Garth can be seen from nearly the whole of the city of Cardiff and the Taff Valley, and on a sunny, clear day as far as Weston-super-Mare across the Bristol Channel in southwest England.
There is now little trace of these although Y Lan Colliery has recently had its portal partly restored as a memorial to an explosion in 1875.
The access road to Pentyrch village, Heol Goch, runs between the main and lesser Garth.
Christopher Monger, a native of Taff's Well, wrote and directed the 1995 film The Englishman Who Went up a Hill but Came down a Mountain.
The popularity of the film has resulted in a stream of visitors climbing to the summit of the Garth to view the location.