Overview
Join us on the first Saturday of September for the first TraiLSD in Boulder, as we host a 8.4miles run with 3,150ft of elevation gain.
What to Expect
- Distance: 8.4 miles. 3,150ft of gain. Come ready.
- Duration: 150 minutes. Bring your trail running gear (trail shoes, hydration vest, flasks, etc...).
- Start Time: Meet near to Eldorado Springs at 7:30 AM for 8:00 AM departure. Only confirmed participants will receive the exact starting location and full run details by mail.
- Bag Drop: Not available.
- Fuel provided by Maurten.
- Post-Run: Refreshments and light bites provided courtesy of our friends from Dry Storage and Wonder Press Juice.
This trail run is open to anyone with experience running trails and feeling comfortable running for over two hours.
To keep our runs safe, smooth, and enjoyable, we’re introducing a simple sign-up system. This helps us look after every runner, offer the best experience, and share some exclusive rewards. Spots are limited, so don’t wait too long to secure yours — see you there !
Good to know
Highlights
- 4 hours 30 minutes
- In person
Location
Eldorado Springs
3633 Eldorado Springs Drive
Boulder, CO 80303
How do you want to get there?

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