A call was made to Surrey Police by the Metropolitan Police around 9:40am today to say that the 14-year-old, who went missing on 12 September, was at a north London police station.
Her safe return is thought to be as a direct result of the media appeals, and the media and public are thanked for their assistance.
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George Osborne told MPs London would shoulder a large part of his 37% reduction in transport funding.
The prison was originally opened in 1852 as a mixed prison before becoming the first female-only local prison in England in 1902.
The victim was travelling between Seven Sisters and Highbury and Islington when she was assaulted.