Click HERE to view the 2024-2025 Community Report

Citizen Science

Events for April 22, 2026

Events Search and Views Navigation

Event Views Navigation

Today

Filters

Changing any of the form inputs will cause the list of events to refresh with the filtered results.

Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Earth Day Animal Spot-A-Thon

Online

Help NASA-supported researchers study wildlife conservation from wherever you are. All you need is curiosity. Featured Project: Snapshot Wisconsin During this virtual event, you’ll explore trail camera photos and classify the animals you see to help track changes in wildlife that informs wildlife management and conservation decisions. Hear from the project scientists, ask questions, and discover...

Free

maricopa county parks and recreation lake pleasant regional park

Maricopa County Parks and Recreation: Discovery Station – What is the City Nature Challenge?

Lake Pleasant Regional Park 41835 N. Castle Hot Springs Rd., Morristown

Stop by an information table where Ranger Derik will teach you how to use your phone to identify and document your nature findings to help the scientific community.   Ranger Derik will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and...

Free with Park Fee

maricopa county parks and recreation estrella mountain regional park

Maricopa County Parks and Recreation: City Nature Challenge Practice Hike

Estrella Mountain Regional Park 14805 W. Vineyard Ave., Goodyear

Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science!   Join Ranger Eric on...

Free with Park Fee

maricopa county parks and recreation usery mountain regional park

Maricopa County Parks and Recreation: Discovery Station – Be a Citizen Scientist!

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

Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community.   Ranger Kevin will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and...

Free with Park Fee

mesa public library logo

Mesa Public Library: Earth Day Animal Spot-A-Thon

Mesa Public Library - Gateway Branch 5036 S. Eastmark Pkwy., Mesa

Celebrate Earth Day by helping scientists monitor wildlife! In this hands-on event, you’ll explore trail camera photos and help classify the animals you see. Your contributions support a NASA-supported research...

Free