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Mountain biking trails

Middlesex County

Billerica State Forest – Grinding Stone on Gilson Hill loop from North Billerica

Mountain biking trails

Middlesex County

Billerica State Forest – Grinding Stone on Gilson Hill loop from North Billerica

Moderate

3.4

(13)

91

riders

Billerica State Forest – Grinding Stone on Gilson Hill loop from North Billerica

00:41

7.80km

80m

Mountain biking

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary. The starting point of the route is right next to a parking lot.

Last updated: August 19, 2026

Waypoints

A

Start point

Parking

1

199 m

Billerica State Forest

Highlight • Forest

Billerica State Forest is very small but it has many great trails for intermediate riders. The south loop – aka Gilson Hill area – has lots of quality trails that can be combined to a fun loop.

Tip by

2

2.20 km

Grinding Stone on Gilson Hill

Highlight • Historical Site

An inconspicuous boulder with round indentations. Supposed to be used by native Americans to grind corn 🌽.

Tip by

3

5.06 km

Billerica State Forest (Gibson Hill)

Highlight • Forest

Billerica State Forest, also known as Gibson Hill State Forest, is a state forest that is available for public use. This park is home to Gibson Hill, a 262-foot hill.

Tip by

B

7.80 km

End point

Parking

Way Types & Surfaces

Way Types

6.41 km

1.35 km

< 100 m

Surfaces

6.41 km

758 m

640 m

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Elevation

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Weather

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Sunday 18 October

14°C

-3°C

-- %

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