Join the 2025 City Nature Challenge!

Coming up April 25th – May 5th, 2025

Started in 2016 as a competition between Los Angeles and San Francisco, the City Nature Challenge (CNC) has grown into an international event, motivating people around the world to find and document wildlife in their own cities.

Run by the Community Science teams at the California Academy of Sciences and the Natural History Museum of Los Angeles County (NHM), the CNC is an annual four-day global bioblitz at the end of April, where cities are in a collaboration-meets-friendly-competition to see what can be accomplished when we all work toward a common goal.

Tri-Valley Conservancy is leading Livermore in participating in the 2025 Challenge, and we would love to have you be a part of it!

 

How can you participate? Attend an Upcoming “Observation Outing” to help document the wildlife in our parks and open spaces!

 

Robertson Park

Friday April 25th, 2025

3:00 pm - 4:30 pm

Robertson Park, Arroyo Mocho, Arroyo Road

Hosted by: Tri-Valley Air Quality Climate Alliance & Ann Brown

Meeting Spot: Livermore Library

 

Saturday April 26th, 2025

8:00 am - 9:00 am

Arroyo Road to Holmes Ave

Hosted by: Ann Brown, Tri-Valley Conservancy

Meeting Spot: Arroyo Rd Bridge, Arroyo Mocho

2:00 pm - 4:00 pm

Greater Del Valle 

Hosted by: Josh Armasino, EBRPD

Meeting Point: Arroyo Rd Staging Area

5:00 pm - 7:00 pm

Holdener Park

Hosted by: Ann Brown, Tri-Valley Conservancy

Holdener Park

Del Valle

Holdener Park

 

Sycamore Grove

Sunday April 27th, 2025

11:00 am - 1:00 pm

Sycamore Grove

Hosted by: Jay Manning, LARPD Open Space

Meeting Point: Sycamore Grove, Wetmore Entrance 

2:00 - 3:30 pm

Hagemann Ranch

Hosted by: Karen Jefferson, Livermore Heritage Guild

Meeting Point: Hagemann Ranch Entrance

Resources & FAQs

Frequently Asked Questions

Frequently Asked Questions (Spanish)

Watch: iNaturalist Training Video

Have a Question About iNaturalist? Post in this Forum.

Having major problems with iNaturalist? You can email help@inaturalist.org.

Next
Next

Tri-Valley Conservancy Announces New Board Members in 2025