Complex sentence: In 1854 Yatala Labour Prison was established near Dry Creek, which passed from east to west through the centre of Yatala, to enable prisoners to work at the creek quarrying rock for roads and construction.
Split into simpler sentences: In 1854 Yatala Labour Prison was established near Dry Creek, which passed from east to west through the centre of Yatala. The location of the prison meant inmates were able to work at the creek quarrying rock for roads and construction.