We're in beta! If you find a bug or have feedback, let us know in our 
Great Lakes Environmental Monitoring with Passive Samplers
Monitor air and water quality of Great Lakes.
Multiple locations, including yours!
- Ongoing
Citizen ScienceOcean Water MarineEcology & EnvironmentChemistrygreat lakesenvironmentpollution
great lakes
within 25 miles
Nov 2, 2025
8 opportunities found! use fewer search filter criteria to find more opportunities
Filters
Indiana Phenology
Indiana Backyard Observers
Monitor the phenological events of plants & animals in Indiana.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentClimate & WeatherNature & Outdoorsnativemanagementwatchrivereducationfishtrackbeefrogspringkidfallchildrenschoolbutterflyreptilecreekrestorelakeagriculturetreeconservesnakepollinatorraccoonplantlegislationmammalgrassconservationautumnmobileappmonitornewtspeciesdunewaterbirdfenresearchmiddlelizardobserveforestkidsseasonalwetlandtriplandstreamrestorationclimateshrubswampflowerchangesbogprairiesalamanderelementaryseasonsrecordsquirrellearnbutterfliesanimalchildwinterfindpolicychangeamphibianteachsummerphenologyinvasiveforestryinsectseasonclasspondhighfield
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: Desert 101 Hike
Lake Pleasant Regional Park Arizona
- November 22, 2025 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: Discovery Station – 100 Miles in 100 Days Challenge
Lake Pleasant Regional Park Arizona
- November 3, 2025 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: Discovery Station – 100 Miles in 100 Days Challenge
Lake Pleasant Regional Park Arizona
- November 7, 2025 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: Evening Fitness Hike
Lake Pleasant Regional Park Arizona
- November 18, 2025 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: Mid-Day Meander
Lake Pleasant Regional Park Arizona
- November 30, 2025 at 7:00 AM
CommunityGeneral Science
Tucson Bird Alliance
Tucson Bird Alliance: Danny Lopez Park Field Trip
Danny Lopez Park Arizona
- November 5, 2025 at 7:00 AM
CommunityGeneral Science
1