Firefly Watch: View & Explore Data

View firefly observation and density maps for previous years of the project.

Firefly Watch Data 2018-2023

• 2023 observation maps
• 2022 observation maps
• 2021 observation maps
• 2020 observation maps
• 2019 observation maps
• 2018 observation maps

"Visualization of firefly reports" created by Matthew Smith and Mapbox volunteers Lo Benichou and Sam Fader.

Archived Data (2008-2023)

The Museum of Science in Boston spearheaded the Firefly Watch project for the first 9 years (2008–2016). Their data and ours is available for download as a Microsoft Excel (.xlsx) file.