City Nature Challenge 2026: Discover and Document Wildlife Across Pennsylvania
Join a global biodiversity celebration right here in Pennsylvania!
The City Nature Challenge is an annual, friendly competition that invites people of all ages to find and document the plants and wildlife around them using the iNaturalist app. Every photo you share helps scientists, land managers and community partners better understand and protect the species that call our region home.
By participating, you’ll:
- Explore and learn more about nature in your own community
- Contribute valuable data that supports conservation
- Help your region compete against cities around the world
Get Involved in Pennsylvania
Pennsylvania has several regional teams taking part—and they need your help!
Northeastern PA (NEPA) Team
Browse the Journal section of the NEPA project on iNaturalist for a full list of public events, plus two upcoming iNaturalist training workshops.
Not in NEPA?
Most of the state is now covered by regional projects. Explore all participating Pennsylvania regions through the statewide umbrella project here.
Take part anywhere in any participating city in Pennsylvania!
Ready to get involved?
Join PA’s City Nature Challenge
Learn more about the global event at City Nature Challenge and find a Pennsylvania project near you.
Join Our PA Nature Community!
Receive updates on local conservation work, events & more ways to get involved.