Catch the Hatch

Mayflies are important indicators of watershed health and are threatened by pollution and climate change. Learn more about project details here.

Dave Rees, Timberline Aquatics

Catch the Hatch

Mayflies are important indicators of watershed health and are threatened by pollution and climate change. Learn more about project details here

Join Catch the Hatch!

Mayflies are important indicators of watershed health. Join our team this summer from June 15- July 15. Record data on mayfly emergence and creek temperature at three creek locations in the St. Vrain sub-basin. Becoming a data catcher means you will train with scientists and make observations on your own schedule!

Click on the map to see summer 2020 locations.

2020 sign-ups coming soon!

Want to receive updates on the project? Join our project email list!

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Left Hand Watershed Center’s Community Science Program aims to engage Front Range communities in place-based learning and scientific data collection about watershed health. Please learn more about our Community Science Plan or help support future projects!

Project News

Catch the Hatch Begins June 15!

Catch the Hatch Begins June 15!

We will be tracking emergence of Pale Morning Dun (PMD) mayflies this summer! Catch the Hatch is one of our Community Science Program's projects, and we have over 30 volunteers geared up and ready to go for the pilot year. Collectively, we will be visiting sites on...

Catch the Hatch! Become a citizen scientist!

Catch the Hatch! Become a citizen scientist!

Join us this summer to Catch the Hatch! This new project will track mayfly emergence in Boulder, Left Hand, and St. Vrain Creeks to help inform watershed health. As you know, mayflies are sensitive to pollution and changing climate. A lot of great organizations sample...

Project Materials