Which City Can Find the Most Nature?

Which city in the United States can observe the most nature? The City Nature Challenge 2017 (April 14-18) will help us find out!

Take the challenge!

Find Wildlife

It can be any plant or critter in your backyard, schoolyard or park in Los Angeles County.



Take a Picture of What you Find

Be sure to note the location of the critter or plant.



Share Your Observations

By uploading your finding through iNaturalist.


Creating your own iNaturalist account


What is the City Nature Challenge?

Just in time for National Citizen Science Day (April 15) and Earth Day (April 22), 16 U.S. cities are asking residents of and visitors to these urban areas to explore nature all around them and document the species they find.

Building on the success of last year’s City Nature Challenge between Los Angeles and San Francisco, the initiative’s co-founders, Alison Young (Citizen Science Engagement Coordinator from the California Academy of Sciences) and Lila Higgins (Citizen Science Manager at the Natural History Museum of Los Angeles County) have expanded the event.

Last year over 20,000 observations were logged by over 1,000 citizen scientists, representing 1698 species in the Bay Area, and 1679 species in L.A. County! What will we find this year, when we look all over the country?

Participating cities:

- Los Angeles

- San Francisco

- Seattle 

- Salt Lake City (and surrounding counties)

- Austin

- Houston

- Dallas/Fort Worth

- Duluth/Twin Ports

- Minneapolis/St. Paul

- Chicago (Cook County)

- Nashville

- Boston (and surrounding areas)

- New York

- Washington D.C. Metro Area

Raleigh (Research Triangle area)

- Miami (Miami-Dade County)


City Nature Challenge is brought to you by Natural History Museum of Los Angeles County and California Academy of Sciences.