Saturday, Jul 18, 2026 @ 7:10 AM

Thumbs Up Summer Slam

101 Peak View Dr

Estes Park, CO Sun up to Sun Down

Registration closes: Wed, Jul 15 @ 11:59 PM MT

The Race

Beginning at Sunrise - 7:10am, runners will ascend the Thumb Open Space out and back trail
At the turnaround runners must collect 1 poker chip to bring back to the start and deposit in their assigned jar
At Sunset, 7:10pm, poker chips will be counted to determine placing
Unique pins will be awarded at 3 milestones
14 ascents - Estes Park 7,522'
18 ascents - Deer Mountain 10,103'
26 ascents - Longs Peak 14,259'
A special award will be given to the winner

This race is limited to 30 participants

Course

The Thumb Open Space trail is a 1km out and back with 540ft of ascent.

On May 26, 2021, the Town of Estes Park officially purchased 65 acres on the south side of Prospect Mountain for designation as the Thumb Open Space, which officially opens to public access on July 1, 2022. This newest Town-owned recreation area is named for the large, thumb-like rock outcrop on the southeastern side of the property. Users are reminded to please respect private property and refrain from leaving the marked public trail; further guidelines are provided under the User Information and Rules tab below.

Getting there

The Thumb Open Space offers NO parking to participants.
We suggest riding a bike or getting dropped off. 1 hour before the start, runners may drop off supplies at the Start/Finish.

Getting here is part of the challenge

Event's current local time: 6:23 AM MT

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