Enjoy your outdoor adventures!
Recreation.gov | USDA Forest Service
From the website:
Reservation Fee: If a reservation fee is charged, it is NON-REFUNDABLE. This fee, for some facilities, is $10.00 for call center reservations and $9.00 for web (www.Recreation.gov) reservations. Service Fee: This $10.00 cancellation fee will be deducted from the amount of the refund given to the customer.