City Nature Challenge

Put Memphis on the map

Memphis needs you to help document our biodiversity! The City Nature Challenge is a friendly international competition to see which cities can document the most wildlife in a single weekend. This year, you can help us put Memphis on the map. Join Overton Park Conservancy and other local organizations for a weekend of fun nature-focused events, or use iNaturalist to record wildlife observations on your own!

The observation period for the 2026 City Nature Challenge will be held from Friday, April 24 to Monday, April 27. The identification period will last through May 10, and final results will be announced on May 13.

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How It Works

Download iNaturalist from your app store, or visit the website at inaturalist.org

Check out the Getting Started Guide for any questions on using the platform

Take photos of any wildlife you see from April 24-27

Upload to iNaturalist; the community will help identify what you saw

Follow the progress of the Memphis project

Check back on May 13 to see how Memphis ranked!

Stay tuned for City Nature Challenge events

The schedule of events for Memphis and Shelby County will be announced in spring 2026.

Next Event
Check back soon!
  • City Nature Challenge: BioBlitz Night Hike at T.O. Fuller State Park

    T.O. Fuller State Park 1500 W. Mitchell Rd., Memphis, Tennessee, United States

    Join Ranger Neal for a night hike at T.O. Fuller State Park using flashlights, lanterns, and iNaturalist to identify plants, bugs, and wildlife. Part of the City Nature Challenge. Fun […]

  • City Nature Challenge: Moth Party at River Garden

    River Garden 51 Riverside Dr., Memphis, Tennessee, United States

    Discover the wild side of the riverfront—after dark! Join Memphis River Parks at River Garden on Saturday, April 25 at 5:30 p.m. for a Moth Party + BioBlitz celebrating the City Nature […]

    Free
  • City Nature Challenge: Hike at Meeman-Shelby Forest State Park

    Meeman-Shelby Forest State Park - Nature Center 361 Grassy Lake Rd., Millington, Tennessee, United States

    Join us for this year's City Nature Challenge! This event is an international BioBlitz, which means the goal is to identify as many species of living organisms as possible! Ranger […]

    Free
  • City Nature Challenge: BioBlitz Hike at T.O. Fuller State Park

    T.O. Fuller State Park 1500 W. Mitchell Rd., Memphis, Tennessee, United States

    Join Ranger Neal for a hike and guided exploration at T.O. Fuller State Park while using iNaturalist. Part of the City Nature Challenge. All ages welcome. Free with registration. Suggested […]

  • City Nature Challenge: Hike at Meeman-Shelby Forest State Park

    Meeman-Shelby Forest State Park - Shelter 2 - Bike Trail 760 Piersol Rd., Millington, Tennessee, United States

    Join us for this year's City Nature Challenge! This event is an international BioBlitz, which means the goal is to identify as many species of living organisms as possible! Ranger […]

    Free
Upcoming

Upcoming

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Questions?

We’re happy to help.

Support Nature Education

Overton Park Conservancy has been stewarding Memphis’s central green space since 2012. Programs like our City Nature Challenge events are only possible thanks to community donations.

Each year, we raise 90% of our budget through the generosity of individuals who value the park’s natural and educational resources.