Trail passes in the Bozeman Community Nordic Trails system are voluntary and are included in any level of trail membership.
What's the catch? The catch is that in order to keep grooming, Bridger Ski Foundation needs to sell enough passes/memberships each year to cover costs. The trails program requires $200,000+ for grooming, maintenance, snowmaking and equipment each year. That comes solely from grants, donations, and trail memberships.
Where does my money go? Bridger Ski Foundation is a nonprofit and your purchase goes straight to BSF's Trails Program to fund the grooming of trails, grooming equipment and the maintenance and management of the program. And yes, your trails pass is a tax-deductible contribution.