Loud Thunder 50

The Loud Thunder 50 is a trail running event taking place on April 19, 2025, at the Loud Thunder Forest Preserve in Illinois City, IL. Participants can choose from three challenging distances: 50 miles, 50K, and a half marathon. The event aims to provide a rewarding experience while showcasing the park's rugged beauty along the Mississippi River.

Registration includes custom swag, fully stocked aid stations, and post-race refreshments, with a portion of fees supporting park conservation. Camping is available nearby, and the course features a mix of terrain, ensuring a memorable and demanding race for all participants. Visit the organization's website for the most recent information.