Police are currently investigating an incident that occurred on the Duck Reach walking track at the Launceston Cataract Gorge yesterday.

A female walker was assaulted by a man about 4.15pm yesterday as she was walking along the track near the old Duck Reach power station. She was not injured during the incident.

The man is described as wearing a khaki shirt, baggy track pants, being between 174 cm and 180cm tall, with blonde bushy eyebrows, fair complexion, blonde scruffy hair, of slim build weighing around 70kg, with a slender face and a pointed chin, aged in his early to mid-20s.

Launceston Police is requesting any witnesses who may have observed this man in the area to come forward and speak to police on 131444.

Information can also be provided anonymously by calling Crime Stoppers on 1800 333 000 or online at crimestopperstas.com.au