The 13-year-old was walking with her parents in the Gibraltar Range National Park, east of Glen Innes, on Sunday afternoon, when she ran into trouble on the bush track.

She walked ahead of her parents, before twisting her ankle, according to a spokesperson for the Westpac Rescue Helicopter.

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A search was initiated after she used her mobile phone to contact her parents, despite minimal signal in the area.

By 3.15pm that afternoon, the NSW Police, ambulance, SES and the Westpac Rescue Helicopter had been tasked with tracking down the teenager, due to the fading light.

NSW Police and SES ground crews located the young girl and she was able to be walked out to waiting NSW Ambulance Paramedics to receive treatment for her ankle.

The medical helicopter had arrived overhead as the young girl was located and remained overhead until she was safely out of the bush.

The helicopter returned to base on Sunday.

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