Originally designated in the 1950s, the expansion of the borders aims to boost rural tourism.
The Yorkshire Dales national park has grown in size by 24%, with the Lakes increasing by 3%.
The move, announced by the Department for Environment, Food and Rural Affairs in October 2015 sees the Dales stretch to the north and west and the Lakes to the east and south.
There has been some amusement about the fact that the Yorkshire Dales national park has extended into Lancashire. It also took in a more substantial part of Cumbria. Most (71%) of the Yorkshire Dales park is still in North Yorkshire, but 28% of its land is now in Cumbria and 1% in Lancashire.
The areas into which the parks are extending are:
- An area in the east from Birkbeck Fells Common to Whinfell Common
- An area in the south from Helsington Barrows to Sizergh Fell, an area north of Sizergh Castle and part of the Lyth Valley
- The north includes parts of the Orton Fells, the northern Howgill Fells, Wild Boar Fell and Mallerstang
- The west extends to Barbon, Middleton, Casterton and Leck Fells, the River Lune, and part of Firbank Fell and other fells to the west of the River Lune
One Lancastrian's light-hearted take on the Yorkshire Dales entering Lancashire"In the spirit of the age, and after much thought, I have now decided to start a petition to rename the Dales National Park (can't bring myself to use the Y word) as the 'Northern Powerhouse Park of the People'.
The powers that be have tried in vain for over a number of decades to rename parts of the Red Rose county.
I can only imagine the area to be added to the national park must be of a far superior standard to any of the current acres.
I have enlisted the help of a stout Red Rose fellowship and we march at dawn to dig the ditch and erect the fence to beat back the advance of our meddling eastern cousins."
Stephen Lowe, Lancashire Outdoors presenter for BBC Radio Lancashire
More information is available on the BBC website here.