CORRECTION (Published 8/22/2013)

A story about a woman injured in a bicycle accident on Mount Diablo incorrectly reported why she was riding on the mountain. She was on a recreational bike ride.

MOUNT DIABLO -- Veteran cyclist Morgan Edwinson felt terror when she pedalled down a curve on the steep, narrow park road here last summer and a van appeared in her lane coming at her.

To avert a head-on crash, the Concord rider dumped her bike on the hard road shoulder, separating her shoulder, breaking ribs and bruising her body.

A month later on her first ride back on Mt. Diablo State Park above Walnut Creek and Danville, the same thing nearly happened again when a motorist on the wrong side of the road nearly smashed into her.

Edwinson got angry. She also got motivated to work with her riding group and state park rangers to create a new safety campaign with signs and handouts to "share the road" on this mountain magnet for cyclists.

"People need to slow down, and avoid passing on blind curves," Edwinson said. "There are things both motorists and cyclists can do to be safer. It's not just the drivers."

Last week, the Diablo Multisport Connection -- her training group -- presented two portable "Don't Pass on Blind Curves" signs to state park rangers for display at rotating spots around the state park.

On Saturday, a woman racing in the Fast Freddie Gran Fondo crashed her bike as she pedaled down Mount Diablo and had to be flown to a hospital with serious injuries.


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Earlier this summer, state park crews installed two fixed road safety signs near the Danville and Walnut Creek entrances to the park.

Diablo Multisport Connection, a training group for women endurance athletes, also provided small cards with road safety tips to be handed out to visitors entering the state park.

Dan Stefanesko, the Mt. Diablo state park chief ranger and acting park superintendent, said the joint campaign is delivering a valuable safety message.

Speeding and passing on blind curves happens too often despite park rangers' patrols and ticket writing, he said.

"We're a pretty safe park overall," he said, "but one of the things that concerns us the most is collisions between bicycles and motorists. When the two collide, it's the cyclists who lose."

State park officials last week had no figures available for bicycle crashes in the state park.

Stefanesko said the risk is growing, as more cyclists from throughout the Bay Area visit the park with rugged beauty, great views, and narrow roads leading 11 miles to the 3,849-foot summit. Many cycling clubs and racing teams regularly ride the mountain.

The already popular mountain become more so when it become part of the racecourse for the prestigious Amgen Tour of California the last two years.

One of the most dangerous practices is cars or vans trying to pass on blind curves when they get frustrated at waiting for slower-moving cars or bikes in front of them.

Motorists are not the only offenders. Some cyclists speed downhill, cut into the opposing traffic lane on curves, or wear headphones on both ears in violation of state law, the chief ranger said.

The most common bike accidents on the mountain, he said, are crashes involving solo riders.

"We urge visitors to take it easy, slow down, and enjoy the wonderful scenery," Stefanesko said.

Contact Denis Cuff at 925-943-8267. Follow him at Twitter.com/deniscuff