Experience the breathtaking beauty of Lyndeborough, New Hampshire on Saturday, August 29, 2026, as the 11th Annual Rose Mountain Rumble (RMR) invites riders from all skill levels to explore its scenic dirt roads. This non-timed gravel ride offers a diverse range of routes—perfect for both casual and competitive cyclists. The event kicks off at Center Hall in Lyndeborough, a historic venue that serves as the starting point and finish line for the 25-mile course. For those seeking greater challenges, intermediate and more advanced options are available: the 45-miler provides an exhilarating journey through varied terrain, while the 66- and 80-mile routes will test even the most seasoned gravel grinders. With a cap of just 150 participants, this intimate event ensures a personal touch for every rider. Each route offers unique landscapes, from rolling hills to forested paths, creating an unforgettable experience that showcases the natural beauty surrounding Lyndeborough and its neighboring towns. Water and snack stops are conveniently placed along each course, ensuring riders stay hydrated throughout their journey. A post-ride lunch prepared by the Wilton-Lyndeborough Women’s Club awaits at Center Hall, offering a delightful culinary treat to cap off your adventure. Additionally, participants can download GPX files of the courses in advance from www.rosemountainrumble.com for added convenience. Proceeds from this year's event will benefit the Piscataquog Land Conservancy, a regional organization dedicated to preserving open space since 1970. Registration fees remain at $125 per rider, with special discounts available for those under 18 years old by contacting the organizers directly. Join us as we celebrate another thrilling edition of the Rose Mountain Rumble! Get ready to rumble and immerse yourself in a day filled with camaraderie, breathtaking scenery, and an unforgettable cycling experience.
Races Offered
RMR 25 MI
Aug 29, 2026
straighten
Distance —
40.2K
terrain
Type —
Cycling
timer
55 days remaining
sell
$125.00
RMR 45 MI
Aug 29, 2026
straighten
Distance —
72.4K
terrain
Type —
Cycling
timer
55 days remaining
sell
$125.00
RMR 66 MI
Aug 29, 2026
straighten
Distance —
106.2K
terrain
Type —
Cycling
timer
55 days remaining
sell
$125.00
RMR 80 MI
Aug 29, 2026
straighten
Distance —
128.8K
terrain
Type —
Cycling
timer
55 days remaining
sell
$125.00
Weather History
These values represent the 3-year monthly averages for August in Lyndeborough.
thermostatTemperature
15.3° / 25.2°
wb_sunnyFeels like
14.4° / 24.8°
light_mode
Avg sunshine hours
11h 2m
water_drop
Avg rainfall
3.3 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
9.5 km/h (Light breeze)
opacity
Sweat loss rate
High
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
High (7.0)
humidity_mid
Humidity
73.4%
wb_twilight
Sunrise
05:54
nightlight
Sunset
19:46
About Lyndeborough
Learn more about the host city, Lyndeborough.
Lyndeborough is a town in Hillsborough County, New Hampshire, United States. The population was 1,702 at the 2020 census.
