Fort William Henry – Prospect Mountain Summit loop from Lake George

If you're looking for a touring cycling challenge with an incredible payoff, the Fort William Henry – Prospect Mountain Summit loop from Lake George is definitely worth your time. This difficult 13.9-mile (22.4 km) route packs in 1770 feet (539 metres) of elevation gain, taking around 1 hour and 43 minutes. It's a demanding ride best suited for cyclists with very good fitness who crave panoramic views and a true test of endurance.

What to expect on Fort William Henry – Prospect Mountain Summit loop from Lake George

This loop is primarily on paved surfaces, making it ideal for touring bikes, but don't let that fool you; it's a serious climb. The ascent up Prospect Mountain Veterans Memorial Highway is a continuous 5.7-mile push, gaining about 1,610 feet with an average gradient of 5.3% and sections hitting 13.3%. While challenging, the reward is immense. You'll pass three scenic overlooks—The Narrows, Lake George, and the Eagle's Nest—before reaching the summit. From the top of Prospect Mountain, you're treated to spectacular 360-degree panoramic views, stretching up to 100 miles to include Vermont's Green Mountains, New Hampshire's White Mountains, and New York's Adirondack High Peaks. It's a ride for those who love a physical test rewarded with expansive Adirondack vistas.

Planning your visit

Be aware that there is a $2 fee per bike to access the Prospect Mountain Veterans Memorial Highway. The highway typically operates from late May to early November, so plan your trip accordingly to avoid seasonal closures. While there aren't designated bike lanes throughout, cyclists generally find a wide paved shoulder, making the ride comfortable despite passing traffic. This route starts conveniently from Lake George, offering easy access to amenities before and after your ride.

Trail details

• Distance: 13.9 miles (22.4 km)
• Elevation gain: 1770 feet (539 metres)
• Difficulty: difficult
• Estimated time: 1 hours and 43 minutes