Roots from a fallen tree - Photo taken in woods near Blubberhouses, Harrogate, North Yorkshire.

Surface roots - Photo taken in woods in Nidd Gorge Knaresborough, North Yorkshire.

On the edge of a river - Photo taken in woods at Bolton Abbey, North Yorkshire.

Hillside erosion washing away the soil - Photo taken in wood near Knaresborough, North Yorkshire.

Roots and rocks - Photo taken next to Lake Semerwater near Bainbridge, North Yorkshire Dales.

Rocks and roots - Photo taken near Rosedale in the North Yorkshire Moors.

Roots exposed by erosion on a slope - Photo taken on the Chevin, Otley, West Yorkshire.

Forming a sheltered haven - Photo taken on the moors above Hebden in the North Yorkshire Dales.

In search of water - Photo taken in woods near Leathley, Harrogate, North Yorkshire.

Running with the river - photo taken in woods near Farndale in the North Yorkshire Moors.

Green roots with moss and lichen - Photo taken in Ilkley, West Yorkshire.