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washington d.c.

within 25 miles

Oct 3, 2025

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4 opportunities found! use fewer search filter criteria to find more opportunities

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Casey Trees

To restore, enhance and protect the trees of Washington DC

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologycanopytreeswashington d.c.plantingtree planting

EnvironMentors

Multiple locations, including yours!

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Citizen ScienceEcology & EnvironmentChemistryBiologyOcean Water MarineGeology & Earth ScienceAnimalsNature & OutdoorsEducationClimate & Weather

Thames Amateur Astronomical Society

International Observe the Moon

Salt Meadow Park CT

October 5, 2025 at 1:00 AM through 1:00 AM

CommunityAstronomy & Space

Jug Bay Macroinvertebrate Sampling

Maryland

Ongoing

Citizen ScienceNature & OutdoorsAnimalsEcology & EnvironmentInsects & PollinatorsOcean Water Marineinsectsinsectwater qualitywater pollutionaquatic insectsbugs

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