Greenham and Crookham Commons are designated as a sight of special scientific interest and are home to many rare and endangered plants and animals.
The commons make up the largest area of lowland heath in Berkshire and contain ancient woodlands, alder-lined gullies, remnants of valley mire, ponds wetland and grassed rich in wildflowers.
Exmoor ponies and cattle graze here. It is important to stay on paths and keep dogs under close control in order to avoid damage to rare plant communities and disturbance of wildlife and livestock.
Car parks off Bury's Bank Road, Greenham.