DateExpected
Early July 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Cannon Mountain Ski Area, 2650 Profile Road, Franconia, NH 03580
Franconia, Grafton County
Countdown
July
Over 500 km of mostly gravel and double-track in one loop, with 8,000 m of climbing. It is a multi-day ride where you carry your own supplies and navigate by GPS.
Key facts
01Self-supported: no aid stations anywhere on the route
02Self-navigated by GPS, so bring a loaded track and a way to keep it powered
03Mixed terrain, mostly gravel and double-track
Create a free training plan for the Swamp Donkey Dash 506 km
7-day free trial, no card required
The course
The route
Franconia
Distance506km
Total climb8,075m
StartElevation
0 kmDrag map to rotate458.4 km
Weather
Early-July, Franconia
24°CTypical high
14°CTypical low
8°CColdest in 20 years
51%Days with rain
Highs around 24°C and lows around 14°C, but it has dropped to 8°C. Rain on 51% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Swamp Donkey Dash 506 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Swamp Donkey Dash 506 km plan targets
Typical sessions
506 km with 8,075 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Sustained climbing repeats on real gradients
Group rides for drafting and bunch-riding skills
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Swamp Donkey Dash 506 km plan.
7-day free trial, no card required.
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