Catch the Hatch

Mayflies are important indicators of watershed health and are threatened by pollution and climate change. Join our team this summer from June 15- July 15. Record data on mayfly emergence and creek temperature at specific 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! Learn more about project details here.

Click the steps below to get started!

Dave Rees, Timberline Aquatics

Catch the Hatch

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

Click the steps below to get started!

Join Catch the Hatch

Click on the map to see summer observation locations.

Catch the Hatch Virtual Training Options

Each volunteer is required to sign up and attend a one-hour training event, either Guided or Self-Guided. In each training, the Catch the Hatch team will cover a project overview, volunteer expectations, sampling timeline and procedures, and data entry. Please sign up for your preferred Guided training slot or Self-Guided option. All new volunteers should consider the Guided training option if possible.

Self-Guided Virtual Training

Gear Pick Up or Delivery Sign Up

We need to get your Catch the Hatch Gear to you! Please sign up for a local pick up location in either Boulder, Longmont or Lyons. Or, if you are unable to pick up gear on the dates provided, sign up for Gear Delivery and provide us an address and preferred delivery date and time. For more details and to sign up, please click one of the two options below.

Catch the Hatch Site Locations

Sign up for as many observation slots as you would like between June 15- July 15.

Boulder
Creek

Left Hand
Creek

North St.
Vrain Creek

St. Vrain
Creek

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 2019 Summary

Catch the Hatch 2019 Summary

Project Summary Total Volunteers: 31 Total Site Visits: 71 Total PMD Sightings: 14 Total Observation Hours: 104 Left Hand Creek Summary Site Visits: 26...

My Watershed App: Community-Powered Watershed Science!

My Watershed App: Community-Powered Watershed Science!

Want to collect watershed science data? There's an app for that!   Join Left Hand Watershed Center's community science program and help track watershed health! All you have to do is sign up and download the My Watershed app!   2019 Program Offerings: Run Off...

Project Materials

Want to join the project and stay up to date on project news? Join the Catch the Hatch email list!

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