"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
The family of a Cumbrian who suffered a botched blood transfusion are furious there was no reference to compensation in the Spending Review.
The Scottish Fire and Rescue Service is calling on householders across the south of Scotland to be aware of the danger of candle fires.
Do you know what's been happening in Cumbria and the south of Scotland over the past seven days? Test yourself in our weekly news quiz.