Westmorland and Lonsdale was a Conservative stronghold in the years following its creation in 1983.
However that all changed in 2005 when Liberal Democrat Tim Farron won the seat, a victory he repeated in 2010 with the biggest majority of any in the Border region.
Geographically, the Westmorland and Lonsdale constituency covers parts of two national parks - the Lake District and the Yorkshire Dales.
It includes the market towns of Kendal, Kirkby Lonsdale and Windermere.
At the 2010 General Election, the constituency had the highest turnout in the region.
The breakdown of the result was as follows:
So what issues are important to voters in the constituency?
At a glance:
- Tourism and farming are the main employers in the region
- The constituency has one of the lowest rates of unemployment in the country
- It has the fourth highest rate of houses classed as second homes
- 24.2% of its population is over 65
In the village of Elterwater in the Langdale valley, 85% of properties are not lived in permanently.
Some fear this could threaten local communities.
Others claim house prices in the area are too high, and that it's difficult for young people to get on the property ladder.
Like many rural areas, transport is also a concern for some voters.
We asked some of the candidates standing for election on May 7 to tell us what it is that they think matters in the constituency:
The full list of candidates standing for election in Westmorland and Lonsdale is as follows:
- John Bateson (Labour)
- Tim Farron (Liberal Democrats)
- Chris Loynes (Green Party)
- Ann Myatt (Conservative)
- Alan Piper (UKIP)
You can watch Fiona Marley Paterson's full report here: