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Mountain biking trails

Valve Tower at Grafham Water – Grafham Water loop from Upper Dean

Routes

Mountain biking trails

Valve Tower at Grafham Water – Grafham Water loop from Upper Dean

Hard

riders

Valve Tower at Grafham Water – Grafham Water loop from Upper Dean

06:34

91.8km

540m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. The starting point of the route is right next to a parking lot.

Last updated: June 12, 2026

Tips

Includes a segment in which cycling is not permitted

After 65.8 km for 274 m

Waypoints

Start point

Parking

Get Directions

7.97 km

Grassy Byway Trail

Highlight (Segment) • Cycleway

A steady descent from West to east takes you on a fast run across gravel, bridleway and single track. Having too much fun to stop and take pictures.

Tip by

17.2 km

Steep Hill

Highlight • Climb

22.8 km

Valve Tower at Grafham Water

Highlight • Lake

Built in the 1960s, the Valve Tower at Grafham Water is space age in design. It houses the equipment used to regulate the flow of water. The reservoir was built …

Tip by

22.8 km

Grafham Water

Highlight • Cycleway

Grafham Water is a site of Special scientific Interest covering almost 2000 acres. Built in 1965, it is the 8th largest reservoir in England. The lake hosts a water sport …

Tip by

33.3 km

Sunset View at Certified Campsite

Highlight • Viewpoint

It's a certified location camp site and can only have 5 caravans or camper vans at one time. Basic access to water, waste disposal and recycling. Most amazing scenery and glorious sunsets!

Tip by

65.9 km

Tilwick Wood

Forest

80.6 km

View West Down the Old Runway of RAF Thurleigh

Highlight • Historical Site

88.1 km

Coppice Wood

Forest

91.8 km

End point

Parking

Way Types & Surfaces

Way Types

31.6 km

28.6 km

19.7 km

6.30 km

5.68 km

Surfaces

42.2 km

20.4 km

13.9 km

7.47 km

5.87 km

2.02 km

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (90 m)

Lowest point (20 m)

Weather

Friday 26 June

31°C

18°C

40 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Comments

September 1, 2024,Numplumz mountain marathon

Great event, super well organised. Last 30k was super tough, very rough

Want to know more?

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Valve Tower at Grafham Water – Grafham Water loop from Upper Dean

Grassy Byway Trail

Steep Hill

Valve Tower at Grafham Water

Grafham Water

Sunset View at Certified Campsite

View West Down the Old Runway of RAF Thurleigh

Nearby routes

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