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Maricopa County Parks and Recreation: City Nature Challenge Hike

San Tan Mountain Regional Park 6533 W. Phillips Rd., Queen Creek

Help document biodiversity of a scenic, under-visited part of the park while participating in the City Nature Challenge with Ranger Eric! The option to do a short vs. a longer hike will be available.   Join Ranger Eric for a hike around the scenic southern end of the San Tan Mountain Regional Park around the Malpais...

Free with Park Fee

Maricopa County Parks and Recreation: City Nature Challenge Hike

Usery Mountain Regional Park 3939 N. Usery Pass Rd., Mesa

Join Ranger Jacque on a brief hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary.   The City Nature Challenge is a global...

Free with Park Fee

Maricopa County Parks and Recreation: City Nature Challenge Hike

Spur Cross Ranch Conservation Area 44000 N. Spur Cross Rd., Cave Creek

Join Ranger Nikki on a moderate hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27.  The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place this year April 24-27. This...

Free with Park Fee

Maricopa County Parks and Recreation: Discovery Station – Connect with Nature through your Phone

Usery Mountain Regional Park 3939 N. Usery Pass Rd., Mesa

Stop by an information table where Ranger Jacque will teach you how to use your phone to identify and document your nature findings to help the scientific community. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary.    Love nature but don't know...

Free with Park Fee

Maricopa County Parks and Recreation: City Nature Challenge Hike

Hassayampa River Preserve 49614 U.S. Hwy. 60 89, Wickenburg

Join Ranger Kevin to learn about and document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27th .   The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place April 24-27th. Ranger Kevin will lead a hike with stops...

Free with Park Fee

Greater Phoenix City Nature Challenge 2026: Sustainability Fest

Arizona Science Center 600 E. Washington St., Phoenix

Discover how to live life more sustainably at Arizona Science Center’s Sustainability Fest Explore topics like rising seas, how to reduce your carbon footprint, composting and recycling, seed germination, and more! Engage with hands-on activities, interact with community partners and vendors and enjoy a full day of sustainable science! All Sustainability Fest activities are included...

Free with Admission