GPS Cycle and Walking Routes

Grime's Graves and Weeting Castle

7 miles (11.7 km)

This circular walk visits two interesting English Heritage Sites in Thetford Forest.
The walk starts at the car park at Grimes Graves, a prehistoric flint mine dug over 5000 years ago. Today the site is run by English Heritage and allow visitors to descend 9 metres (30 ft) by ladder into an excavated shaft to view the jet-black flint.
After exploring the site you can then pick up footpaths heading west to Emily's Wood and the village off Weeting. Here you will find the historic Weeting Castle, a ruined 12th-century manor house with an interesting history. The structure was built around 1180 by Hugh de Plais, and included a three-storey tower, a substantial hall, and a service block, with a separate kitchen positioned near the house. A moat was later dug around the site in the 13th century.
After exploring the castle ruins the route retraces its steps to Sunnyside Cottage before turning south to Shadwell's Plantation. You then follow woodland trails east to Bromehill Cottage before turning north to north east to return to the Grime's Graves car park.


IP26 5DE - Please note: Postcode may be approximate for some rural locations

Grimes Graves OS Map - Mobile GPS OS Map with Location tracking

Grimes Graves Open Street Map - Mobile GPS Map with Location tracking

Further Information and Other Local Ideas

There's lots of good options for continuing your walking in this area of Thetford Forest. If you head south you could visit the pretty village of Santon Downham where there's an interesting 13th century church to investigate. You can also enjoy a lovely riverside walk here along the Little Ouse Path. In the forest there's also Lynford Arboretum to consider. It's a lovely place for a walk with woodland trails, pretty lakes and an impressive 19th century Sequoia Avenue to see.
For more walking ideas in the area see the Norfolk Walks page.


Track to Grime's Graves - - 1017452

Track to Grime's Graves. What the prehistoric miners sought here was the fine quality jet-black flint ‘floorstone’, which occurs some nine metres below surface level. This was prized as an easily ‘knapped’ material for axes and other tools – and much later elsewhere for well-sparking flintlock muskets. Digging with red-deer antler picks, they sank shafts from which radiated gallery-tunnels, following the seams of flint.

Entrance to Grime's Graves - - 397322

Entrance to Grime's Graves. The site is the only Neolithic flint mine open to visitors in Britain. A grassy lunar landscape of over 400 shafts, pits, quarries and spoil dumps, they were first named Grim’s Graves – meaning the pagan god Grim’s quarries, or ‘the Devil’s holes’ – by the Anglo- Saxons. It was not until one of them was excavated in 1870 that they were found to be flint mines dug over 5,000 years ago, during the later Neolithic and early Bronze Ages.

Open Flint Mine. Grime's Graves - - 1318798

View of the ladder down to the show pit. Hard hats must be worn here.

Grimes Graves, near Thetford, Norfolk - - 41510

A summer view of Grime's Graves. Dating from the Neolithic age of 5000 years ago, it is one of the country's earliest mining sites. The remains of 433 mineshafts, pits, and spoil heaps pockmark the surface of the ground where ancient man dug for flints from which to make tools and weapons. 28 of the mines have been excavated and one has been left open to allow visitors to climb down into.

Weeting Castle - 18th C Icehouse - - 2377317

Ice house, Weeting Castle

Weeting Castle - - 2377286

Weeting Castle is a 12th-century ruin with a three-story-high tower in Weeting, near Brandon, Norfolk. Despite the name, it is not a castle but actually a fortified manor house. It has a large open hall and an attached two-storey chamber block. There's a domed brick ice-house on the northwest corner of the moat and a small car park next to the church. The moat was added in the 14th century. The place is thought to have been abandoned in 1390. The manor was built on a 10th C settlement. It is now owned by English Heritage. Entry is free and the location is open all year for visitors.

St. Mary's church Weeting - - 993293

St. Mary's church Weeting. Viewed from Weeting Castle.

Weeting Castle, Latrine block - - 738408

Weeting Castle, Latrine block

GPS Files

GPX File

Grimes Graves.gpx (On Desktop:Right Click>'Save As. On Ipad/Iphone:Click and hold>Share>Save to Files')

Memory Map Route

Grimes Graves.mmo (On Desktop:Right Click>'Save As. On Ipad/Iphone:Click and hold >Share>Save to Files)