Iconic Conversations Speaker Series, 2025-2026Join us each month for a thought-provoking speaker series that brings St. Louis history to life. Gateway Arch National Park and Jefferson National Parks Association are proud to host compelling talks by local authors and other knowledgeable guests who will explore a variety of topics relevant to the St. Louis region. You might learn about our city's early beginnings, its architecture, our prominent leaders, the rise of the Gateway Arch, our civil rights struggles, and the best things to do around town. Book discussions will be followed by an author signing opportunity. All programs are free and no reservations are needed. They will be held at 2:00 p.m. on the second Sunday of the month in the rotunda of the historic Old Courthouse (11 N. 4th Street, St. Louis, MO 63102). The building is fully accessible, and a sign language interpreter will be on hand for each presentation. Naturalization Ceremony. Friday, September 19, 11 a.m. In the rotunda of the historic Old Courthouse.Thirty people are scheduled to get naturalized as U.S. citizens at this ceremony. The public is invited to witness the ceremony but there will be no chairs available for them to sit in as the chairs are reserved for the people getting naturalized and for their families and friends. There will be space available to stand on the south side of the rotunda behind all of the chairs and anywhere up on the second-floor balcony. RSVP's are not needed from anyone who wants to witness the ceremony. 
NPS Photo National Public Lands Day. Saturday, September 27. Several activities throughout the day.National Public Lands Day is traditionally the nation's largest single-day volunteer effort. It celebrates the connection between people and green space in their community, inspires environmental stewardship, and encourages use of open space for education, recreation, and health benefits. Every year, Gateway Arch National Park and Gateway Arch Park Foundation commemorate this special day by hosting a Riverfront Cleanup. Just Breathe Yoga Session Under the Arch: 9:30 a.m. to 10:00 a.m.Join The Collective STL for Just Breathe Yoga, a free, all-levels yoga session under the Gateway Arch. Registration will be available soon. Mississippi River Cleanup: 9 a.m. - noon.Meet up and team up at the Gateway Arch to help clean up the St. Louis Riverfront! Nine billion tons of trash end up in the ocean every year. In fact, the Mighty Mississippi River is one of the largest sources of oceanic plastic debris. But with YOUR help, we can minimize our environmental footprint by collecting riverside trash to keep the riverfront clean. Gateway Arch National Park, Gateway Arch Park Foundation, Beyond Plastics, Republic Services, Missouri Stream Team, Great Rivers Greenway, Living Lands & Waters, and the City of St. Louis have partnered to organize a community trash pick-up event on National Public Lands Day, Saturday, September 27 from 9 a.m. - noon. Recruit your friends and family members and join us in lending a helping hand and cleaning up the riverfront! Interested volunteers should register online at archpark.volunteerhub.com. Explore the new exhibits at the Old Courthouse: 9 a.m. - 5 p.m.Through the generous support of Gateway Arch Park Foundation's philanthropic donors, the Old Courthouse has undergone extensive renovations to introduce brand-new exhibits, update critical structural elements, and enhance overall accessibility, ensuring this historic building will remain vibrant for future generations. The Old Courthouse is free and open to the public. You’re invited to explore and learn more about important parts of our nation’s history that occurred within the Old Courthouse, including where Dred and Harriet Scott sued for their freedom, Virginia Minor fought for her right as a woman to vote, and more than 300 enslaved African Americans filed suits for their freedom. NPS Fee-Free Day: 9 a.m. - 5 p.m.The National Park Service has designated National Public Lands Day on Saturday, September 27 a fee-free day, in which the entrance fee at all NPS sites is waived. At Gateway Arch National Park, the $3 entrance fee included in each adult Tram Ride to the Top ticket and adult Documentary Movie ticket is waived. This means that Tram and Movie tickets will be $3 cheaper than they normally are. 
2025 Gateway to the Stars Events:An astronomy or National Park related educational program will precede free telescope viewing of the Moon and other celestial objects.Saturday, September 27, 7:00 pm. "Ranger Night Walk." Enjoy a walk around the Park and learn about area history. Meet at the entrance plaza. 
NPS Photo 2025 B.A.R.K. Ranger EventsAll B.A.R.K. events will be held outdoors and all will meet at the entrance plaza. Events will be cancelled or rescheduled in case of inclement weather. All dogs must be leashed and friendly. See our Pets page for more information about B.A.R.K. Ranger. Sunday, September 21 at 10am. Dog Art. Create a special piece of art with your pet. All materials will be provided. Sunday, October 19 at 10am. Pet Costume Parade. Dress up your pets and show them off in a parade around the Arch. **Note: there will be no prizes for the parade. All dogs are good boys and girls. Keep checking this page for more information about future events
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Last updated: September 11, 2025