The Ozark Mountain Bike Festival at Devil’s Den State Park marks its 25th anniversary with guided rides, bike contests and workshops April 5-7.

All events are free. Helmets are required and riders should expect the trails to be muddy. Most rides are held on the 5.5-mile Fossil Flats Trail.

The festival starts at 2:30 p.m. on April 5 with an easy ride around the Fossil Flats Trail led by Rebekah Penny and Tim Scott of the park staff .

Saturday’s schedule: Guided ride on the Fossil Flats Trail suitable for beginner mountain bikers, 9 a.m.

Guided ladies-only ride along Fossil Flats Trail, 10 a.m.

Basic riding clinic, Fossil Flats Trail, 1 p.m. Learn to pedal efficiently and navigate rough terrain.

Guided intermediate 12-mile ride, 2 p.m.

Kids fun event with bike limbo, teeter-totter and cone course, 2:30 p.m.

Poker run, Fossil Flats Trail, 4 p.m., suitable for all riders.

Mountain bike contests with bike toss, slow race, limbo and bunny hop contests, 6 p.m.

Hamburger cookout, 7 p.m.

Guided night ride, suitable for intermediate riders, 8:30 p.m., riders must have one source of light.

Sunday: Guided ride on Fossil Flats Trail suitable for beginners age 12 and up, 9 a.m.

Intermediate ride on Fossil Flats and Butterfield trails, 10 a.m.

Trail-maintenance workshop, 10:30 a.m.

For festival details, call Devil’s Den State Park at 479-761-3325.

Outdoor, Pages 7 on 03/28/2013