City of Trees Marathon

The City of Trees Marathon, scheduled for October 11, 2025, in Boise, Idaho, features a variety of running events including a full marathon, half marathon, 10k, and 5k. Participants can expect great swag, including a coveted t-shirt hoodie and finisher awards. The race courses utilize the scenic Boise Greenbelt, which may present challenges such as wildlife encounters and unpredictable river conditions.

Registration is available online, with pricing tiers that increase as the event date approaches. This marathon promises a vibrant atmosphere and a celebration of community and fitness. Visit the organization's website for the most recent information.