"We are asking these people to cast their minds back and let us know if they saw anything suspicious.
"We know this incident took place five years ago, but we are asking people to try and remember if there was anything they seen at the time which they never reported to
“We want to hear from anyone who may have information about this serious sexual assault.
"No matter how small you think the information is, it could be vital in catching the offender.”
Anyone with any information can contact Cumbria Police on 101 and ask to speak to Detective Chef Inspector Rob O’Connor.
More top news
A look ahead at the forecast for the Border region.
In the picturesque village of Maulds Meaburn, Flass is alleged to have been at the centre of a multi-million-pound drugs plot.
The Lake District National Park wants 10 volunteers to meet tourists on Windermere cruises and encourage them to stop off at Brockhole.