Date & Time
Sunday, Apr. 30, 2023
12:00 PM - 2:00 PM
Location Heinz History Center 1212 Smallman Street
Pittsburgh PA, 15222
Ticketing Free

Learn about the biodiversity of Pittsburgh during the City Nature Challenge. 

Join the History Center for a nature walk along the Three Rivers Heritage Trail to discover and document Pittsburgh’s biodiversity as part of the City Nature Challenge.

A family-friendly activity for all ages, the City Nature Challenge is an international initiative that encourages communities to collaborate and share observations of nature across the globe.

Taking part in the Challenge’s “bioblitz” is easy! After spotting wildlife and plants, participants will take pictures using the iNaturalist app and upload their observations for documentation and identification.

Friends of the Riverfront will join the nature walk to help identify species and share the history of the Three Rivers Heritage Trail. Walking along the Three Rivers Heritage Trail will happen rain or shine. Please dress appropriately and bring water bottles. A smartphone or tablet is also highly recommended for participants.


  • 12 p.m. – Meet outside the History Center, under the goal posts on Smallman near 11th
  • 12:10 p.m. – Introductions and overview
  • 12:20 p.m. – Walk to Three Rivers Heritage Trail
  • 12:30-1:45 p.m. – Nature walk from the Rachel Carson Bridge to 16th Street Bridge
  • 2:00 PM – Return to the History Center
  • 2:30 PM – Guided tour for participants


Participation in the City Nature Challenge walk is free. Participants who choose to return to the Heinz History Center at 2 p.m. for the guided tour will receive a 50% discount on admission to the museum.

The nature walk will begin at noon, and attendees should meet at the goal posts (situated in front of the bus pull-off) outside of the Heinz History Center near 11th Street. The walk will commence on the Three Rivers Heritage Trail through the 11th Street trail access point.

For additional information, please contact