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 campaign to find and document plants and wildlife species in cities across the globe. This friendly competition 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 100 cities around the globe.

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 people 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 is committed to protecting, enhancing and restoring natural resources for the benefit of all people and wildlife throughout the Baltimore region. 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 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. All observations made in the following counties and uploaded to iNaturalist during the challenge will automatically be counted towards Baltimore's City Nature Challenge totals: Baltimore City, Anne Arundel, Baltimore, Carroll, Harford, Howard and Queen Anne's 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 5, 2019.

Track the Challenge (iNaturalist Feed)

You can get involved in the Baltimore City Nature Challenge by joining a participating National Aquarium event, taking part in 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