Stocks Reservoir was created in 1932 by flooding the valley of the River Hodder, submerging the former village of Stocks-in-Bowland.
The forest is home to a significant population of red squirrels, which are protected within the Lancashire woodlands.
The mountain bike trails are purpose-built and maintained to include technical features like boardwalks and rock gardens.
The area is an International Dark Sky Discovery Site, recognized for its exceptional visibility of the Milky Way.
The reservoir is managed by United Utilities and serves as a significant site for bird migration, attracting species like ospreys and goosanders.
Much of the site was historically owned by the Duke of Buccleuch before being integrated into Forestry England's estate.
Gisburn Forest is the largest forest in Lancashire, managed by Forestry England, offering extensive trail networks for mountain biking and hiking. The site features the Stocks Reservoir, a major water supply for the region that serves as a focal point for wildlife observation. It hosts the 'Hully Gully' and 'Bottoms Way' mountain bike trails, which are highly regarded in the UK cycling community. The area is integrated into the Forest of Bowland National Landscape, an Area of Outstanding Natural Beauty. Visitors can access diverse habitats, ranging from dense coniferous woodland to open moorland and riparian zones. The site facilitates night-time stargazing due to its low light pollution levels. A dedicated cafe and bike rental facility operate on-site to support recreational activities.
The elevated viewing points along the reservoir perimeter offering a panorama of the water and the surrounding Bowland hills.
Bring a puncture repair kit or spare inner tube as the terrain can be harsh on mountain bike tires.
Check the Forestry England website for 'trail status' updates before leaving, as routes may close for timber harvesting or winter maintenance.
Bring binoculars if you are interested in bird watching at the reservoir edge.
Attempting to swim in the Stocks Reservoir, which is prohibited due to dangerous water temperatures and hidden underwater structures.
Stay on marked trails to protect sensitive moorland habitats; keep dogs on leads near reservoir livestock; follow the 'Leave No Trace' principle.