Gamma Forests

The Gamma Forests were a location inhabited by humans.

Culture
Girls from the Gamma Forests were sometimes known as 'Gamma Girls'. The Gamma Forests were 'Heaven-neutral', referring to its neutral stance towards recruitment for the Church. The people there crafted handstitched cloth symbols of devotion called 'prayer leaves'. These were embroidered with the names of one's children in the native tongue of the people of the Gamma Forests, as a sign of belief that their child would always come home to them.

A few facts were known of the Gamma Forests language. The word 'doctor' had been translated as 'mighty warrior' (which had made them view the Doctor's past as a dark legend), while the only word for 'pond' translated as 'river' because a river was the only water in the forests. (DW: A Good Man Goes to War)

History
When Lorna Bucket was a child, she met the Doctor in the Gamma Forests. She recalled that he told her to "run". She also claimed that the reason she enlisted in the Church was partly because the Doctor's short visit to the forests was the only thing that had ever happened there. Lorna later crafted a prayer leaf and gave it to Amy Pond, who had recently been separated from her newborn daughter. After the Battle of Demon's Run, as Lorna died, the Doctor pretended to recall their adventure, even though he did not remember her or had not yet encountered her in his timeline. (DW: A Good Man Goes to War)