MAMMOTH LAKES, Calif. (BRAIN) — The United States Forest Service has approved e-bike usage in the Mammoth Bike Park, making it one of the first bike parks on USFS land to allow e-bikes.

The USFS will allow Category 1 e-bikes on trails within the boundaries of the Mammoth Bike Park. The bikes are not allowed on USFS outside the bike park.

Mammoth will offer a fleet of Trek demo e-bikes for this season, which opens Friday, May 25.

"E-bikes will help some of our guests experience the Bike Park in ways they wouldn’t otherwise be able to. Having studied e-bike usage at bike parks and mountain bike destinations in Europe we felt quite comfortable that this was a move that would benefit a number of our guests, with minimal impact on the trail system and non-motorized riders," the park said in a FAQ document it released this week.

Several e-bike races have been held at Mammoth starting last year.