2026 Peak Flow Prediction Contest
February 20, 12:00 AM - April 22, 11:59 PM
Want to test your runoff knowledge for the chance to win amazing prizes? The Peak Flow Prediction Contest allows participants anywhere to guess the date and time of the peak flow of the Eagle River, while learning about why flushing flows matter.
The 2026 contest is now open!
Quick Links
A donation to participate is optional and supports our mission of protecting local rivers.
This year, we’re doing things a little differently regarding the Peak Flow Prediction Contest. Rather than requiring participants to purchase tickets to submit their guesses, the contest is free, with a suggested donation to support our watershed education programs and restoration projects, like the Eagle River Water Festival for 5th-graders and the Community Pride Highway Cleanup. That’s right, you can go ahead and submit up to 5 guesses right now – no purchase required!
Keep scrolling to see great prizes you could win!
Thank you for participating in this annual contest. Reach out to our team with any questions.
Please note: Prizes may be picked up from our office in Eagle, or arranged for local delivery within Eagle County. For buyers outside of Eagle County, shipping may be arranged – with the buyer responsible for shipping costs.
See Results
Note: In the past, the contest focused on the peak of the Eagle River at Gypsum; the 2026 contest focuses on the Eagle River in Avon below the wastewater treatment plant.
- According to the USGS website, Eagle River peaked twice at the Gypsum gage – first on June 3 at 11:45 am, and then again at 1 pm, both with a flow of 2,630 cubic feet per second (cfs).
- According to the USGS website, Eagle River peaked at the Gypsum gage at 7:45 am on June 9, topping out at 3,010 cfs.
- According to the USGS website, Eagle River peaked at the Gypsum gage on June 9 at 8:15 am, when its flow topped out at 3,010 cfs.
