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The Rumble up to Trumbull
Groveland Grind 1
The 48-mile all-terrain route, nicknamed the Rumble up to Trumbull, is open to all riders (Photo contributed).

Looking for a little spring adventure? The third ever Groveland Grind cycling adventure will be held on May 20 on mixed terrain routes on the doorstep of Yosemite National Park.

The Grind is a mixed-terrain event, contested on pavement, broken pavement, gravel and dirt.

There will be three routes for riders of all experience levels.

The 48-mile route, nicknamed the Rumble up to Trumbull, is open to all riders.

“Trumbull Peak is basically the turn-around point,” said Dwight Follien, president of Groveland Trail Heads bike club. “During one race, the course marshal had to go up there because riders weren’t coming back. Instead of turning around, they were stopping and taking pictures. They couldn’t believe the view.”

Groveland Grind 2

Trumbull Peak, at just over 5,000 feet, offers breathtaking views into Yosemite, according to Follien.

A medium route of 30 miles is open to beginners, sport class riders and expert pros, while a 21-mile short course is open to beginners and sport class.

And, for the first time, the event will be open to pedal-assist, no-throttle e-bikes.

During the inaugural event, a total of 56 riders participated. In 2019, the Grind again featured 56 riders, which Follien said was a decent total since it snowed the day before the event.

This year, nearly 40 riders have pre-registered, and riders can continue to register right up to the day of the event.

The Grind takes place at Yosemite Lakes RV Resort and Campground, 31191 Hardin Flat Rd., in Groveland — five miles from the entrance to Yosemite National Park and next to the south fork of the Tuolumne River.

The event supports the Groveland Trail Heads and their development of a mountain-bike specific single-track trail system, while promoting health, recreation and economic development throughout the Groveland area.

Groveland Grind 3

According to Follien, the Trail Heads are trying to raise $20,000 to receive $20,000 in matching funds from the Sonora Area Foundation to build the club’s next mountain bike trail in the Ferretti Trails system.

The club will soon be making course assessments to determine their condition after the winter storms.

“We won’t know what it looks like until April 15,” said Follien. “I’m sure there’s going to be at least 300 trees down. It’s going to take a lot of people and a lot of chainsaw work.”

But Follien expects that race will go on as scheduled.

“The only thing that will stop the ride is if it’s unsafe,” he said. “Safety is the No. 1 thing when we do these events. If a road not passable — unsafe to pass by a bicycle — we will re-route or think about not doing it.”

The race is open to mountain bikes and gravel bikes, as many of the roads on the course are forest service roads and the railroad grades into Yosemite.

Registration costs $95 and just $45 for students and members off the High School Mountain Bike Race League.