Person Examining Bugs

City Nature Challenge 2019: Baltimore

We Need You!

The National Aquarium is excited to coordinate regional efforts for the 2019 City Nature Challenge, an international effort to find and document plants and wildlife in cities across the globe. This friendly competition between cities to see which metropolitan area can make the most observations of nature, identify the most species, and engage the most people will be held April 26 – 29 in over 60 cities.

Will you help Baltimore win the City Nature Challenge? Join us by documenting all the plants and animals you see from April 26 – April 29, 2019.

People Taking a Picture of an Insect Specimen

There is nature all around us, and urban settings like Baltimore are no exception. By participating in the 2019 City Nature Challenge, you will learn more about your environment and help make Baltimore a better place — for you and for wildlife!

Help Baltimore to Victory

Join us in showcasing Baltimore's natural wonders to the world! Take the pledge and you will receive instructions on how to participate as well as reminders as challenge dates approach.

Get Nerdy with Nature

As regional coordinator, the National Aquarium will manage City Nature Challenge efforts around the Baltimore region. We are committed to protecting, enhancing and restoring natural resources for the benefit of all people and wildlife. Part of that commitment includes knowing which species of wildlife live nearby and what sorts of habitats they need to thrive. Be a citizen scientist with us by helping us document Baltimore's biodiversity. Need some practice before the big Challenge in April? Come get nerdy with nature outside on our waterfront plaza, at our Biohut inventories or practice your citizen scientist skills near your home!

Baltimore City Nature Challenge Map of Area

In Baltimore City…and Beyond!

The National Aquarium is calling on citizen scientists to help explore, identify and document urban wildlife throughout the Baltimore metropolitan area and neighboring counties of the Chesapeake Bay. All observations made in the following counties and uploaded to iNaturalist during the challenge will automatically be counted towards Baltimore's City Nature Challenge: Baltimore City, Anne Arundel, Baltimore, Carroll, Dorchester, Harford, Howard, Kent, Queen Anne's and Talbot Counties.

Ready, Set, Upload

City Nature Challenge Step 1

Step 1: Download the iNaturalist App

Download the iNaturalist app and create a login.

City Nature Challenge Step 2

Step 2: Find Wildlife & Photograph What You Find

It can be plant, animal, fungi or any evidence of life such as tracks or shells.

City Nature Challenge Step 3

Step 3: Upload Your Observations

Share your observations by uploading your pictures to iNaturalist. All observations must be uploaded by May 3rd.

Track the Challenge (iNaturalist Feed)

You can get involved in the Baltimore City Nature Challenge by joining a participating National Aquarium event, taking part our partner organizations' events, or simply going for a walk outside! Read on to learn more about upcoming events near you.

Check out the wildlife people are seeing in and around Baltimore today!


The City Nature Challenge Is Organized by:

California Academy of Science and Natural History Museum Los Angeles County Logos

If you have questions or if your organization is interested in partnering with us, please email