North Reservoir – Cambridge Common loop from Harvard

If you're looking for a challenging gravel biking adventure that blends urban history with natural beauty, the North Reservoir – Cambridge Common loop from Harvard is a difficult 16.7-mile (26.8 km) route with 653 feet (199 metres) of elevation gain, typically taking 1 hours and 49 minutes. This loop offers a unique perspective on the Cambridge area, making it a great choice for experienced riders seeking diverse terrain and a rewarding workout.

What to expect on North Reservoir – Cambridge Common loop from Harvard

This route takes you on a journey from the academic heart of Harvard University and the historic green expanse of Cambridge Common, transitioning into the more rugged, natural settings around the North Reservoir. You'll experience a mix of dedicated cycle lanes and paved roads in the urban sections, gradually giving way to packed dirt, gravel, and potentially technical segments as you approach the Middlesex Fells Reservation. Expect rolling terrain with short climbs, and be prepared for some unpaved sections that might require a minimum tire size of 32c or larger for comfort. The changing scenery, from collegiate architecture to lush woodlands and reservoir views, makes the effort worthwhile for confident gravel bikers.

Planning your visit

While specific parking details for this exact loop aren't provided, be aware that roads within Cambridge can be busy, so plan your ride accordingly, especially if starting from Harvard. The route's blend of urban and natural environments means you'll encounter varied conditions. Given the potential for technical or rocky segments in the Middlesex Fells, ensure your bike is equipped with appropriate tires. This loop is best enjoyed when you have ample daylight to navigate the diverse terrain.

Trail details

• Distance: 16.7 miles (26.8 km)
• Elevation gain: 653 feet (199 metres)
• Difficulty: difficult
• Estimated time: 1 hours and 49 minutes