Ongoing

2026 City Nature Challenge

(DMV) Join community and citizen scientists all over the globe to observe wildlife: animals, plants, and fungi in backyards, neighborhoods, and parks in urban areas. Using iNaturalist to document them, you can share your observation to help scientists track the wildlife that share our urban areas. See DC metro area events here and in this calendar. Register to track you ...

CNC iNaturalist Bioblitz on Mount Vernon Trail

Daingerfield Island Marina Washington Sailing Marina 1 Marina Dr, Alexandria

(VA) (Friends of the Mount Vernon Trail) Help document and learn more about animal and plant species on the Mount Vernon Trail. Join us to find and document plants and animals for the City Nature Challenge! A Bioblitz is a communal citizen-science effort to record as many species within a designated location and time period as possible. Bioblitzes are also ...

CNC Observation with Arlington Master Naturalists

Madison Manor Park 6225 12th Rd N, Arlington

(VA) (Arlington Regional Master Naturalists) Bring curiosity and a camera (mobile phone cameras are great!) to explore the hill and hollows of Brandymore Castle for the City Nature Challenge. Photograph wild plants and critters to upload to iNtauralist to help the greater DC area excell in this friendly worldwide competition. After the guided trek, feel free to explore on your ...

CNC Observation with DC Master Naturalists

Fort Dupont Park Minnesota Ave SE, Washington DC

(VA) (Capital Nature) Join DC Master Naturalists and Capital Nature for our annual City Nature Challenge observation at Fort Dupont Park. Fort Dupont hosts some of DC's most abundant biodiversity of birds, fungi, and plants (as well as invasive plant challenges), but they often go unnoticed. Help us put this green gem on the map while you enjoy a restorative ...