To recognize Americaโs 250th birthday, Harford County has launched โCelebration Trail,โ a new interactive app that helps people explore the countyโs 63 historic sites.
Residents and visitors can use โCelebration Trailโ to guide them through museums, historic homes, landmarks, and sites while learning the stories of the people and events that shaped the region and nation. The app is free and allows users to navigate each experience at their own pace. They can also track their progress, if they like.

โHarfordโs Celebration Trail brings our rich history to life in a way thatโs interactive, accessible, and fun,โ Harford County Executive Bob Cassilly said in a statement. โWhether youโre visiting for the first time or rediscovering your hometown, this experience encourages you to explore, learn, and celebrate along the way.โ
The app was developed by Hello Harford, the countyโs touring marketing division, which operates under the Department of Economic Development. It was created in collaboration with the America 250 in Harford County Committee, and it is powered through the โLetโs Rallieโ mobile app.
To use โCelebration Trail,โ users must download the โLetโs Rallieโ app, which is available in the App Store and Google Play. Within the app, search for โHarford County Celebration Trail.โ Then users can explore the locations using the interactive map, check in at each destination if they like, track their progress, and even revisit memories in the โMy Visited Sitesโ section of the app.
As a special bonus, participants who record the most site visits through โLetโs Rallieโ in 2026 will be eligible for giveaways from Hello Harford. For more information and updates, follow Hello Harford on social media.
