Home NEWS Local Scene Las Trampas Hiker Hospitalized After Collision With Mountain Biker Wednesday

Las Trampas Hiker Hospitalized After Collision With Mountain Biker Wednesday


A 51-year-old woman hiker walking in the area of the Del Amigo Trail in the Las Trampas Regional Preserve was struck by a mountain biker and was eventually hospitalized with significant injuries Wednesday.

The unidentified hiker suffered facial cuts and injuries to the shoulder and chest in the collision. San Ramon Valley firefighters had to hike in to the preserve to reach the victim, bringing her out to a trailhead where a waiting ambulance took her to San Ramon Regional Medical Center.

East Bay Regional Park District spokeswoman Carolyn Jones called the encounter “an unfortunate accident.”

“We have an officer who works the area who told me he hasn’t seen an accident of this type in 20 plus years,” Jones said. “The cyclist was under the 15 mph speed limit… he just couldn’t avoid hitting the hiker.”

Jones said the accident occurred while the biker was descending and rounded a bend, encountering a group of three women and unable to avoid hitting one of them. The cyclist was thrown from his bike by the force of the collision, according to Jones.

She called the unidentified hiker “extremely apologetic” and upset about the incident, asking park staff for the woman’s name “so he could send her flowers.”

Jones said the Del Amigo trail is popular with local cyclists and hikers alike and that a peaceful coexistence appears in place.

“This is an isolated thing and we here at the district wish this hiker a speedy recovery,” she said.


  1. Trying to see if the trail was single track, double track or legal single track. The maps are so horrible it doesn’t show. An accident is something that can’t be helped. If this was a mountain bike on a single track, not legal for mountain bikes, then it wasn’t an accident. It was battery and I hope the rider is charged.

    • East Bay Regional Park District people said bikes are allowed on that trail, and that the rider in this case was under the speed limit for that area – 15 mph. They put it down as an unfortunate – and apparently rare – accident.

    • The still pic is a “grab” from the accompanying video, which shows a rider in descent and encountering a woman and child – and with no room to maneuver. We thought it illustrative of this particular crash, in which a descending rider rounded a bend and encountered a group of three hikers – also with nowhere to go.

  2. I’ve had to get out of the way of plenty of mountain bikers on single-track trails clearly marked “no bicycles” in the Shell Ridge Open Space. Each time it happened I alerted the rangers who told me they could do nothing about it – they have no authority to write citations – and warned me against taking pictures of scofflaws.

    15 mph around a blind curve seems a little excessive even on wide trails, given that they’re multi-use.

  3. Rather than a recording of the incident in question, which they state from the start, the video demonstrates how quickly things can go wrong for people and cyclists on the trail. I got that. I’m surprised others don’t.

  4. This appears to be an unfortunate accident, but might have been avoided if the cycles used a thumb bell. I’m a big advocated for all riders to use a thumb bell when riding. I find hikers, bikers and equestrians all appreciate a little advance warning when a riders is approaching from behind or around blind turns

  5. Hey News24-680,

    I know you were trying to help with an illustration, but the video you linked isn’t even remotely similar to the issue in Las Trampas. In the video, what appears to be a mom and a kid with a bike were in the blind landing zone of a jump at a bike park/open space with bike jumps. It is NOT the fault of the descending party in that case. If the descending party was injured, arguably the mom would have been at fault for negligently stopping on the downhill side of a blind jump. At ski areas such things and rules are clearly marked. Unfortunately they’re not always marked at a park, but this should be common sense. The situation is made worse by the fact that the downhill party had a bike, so that argues even more that they should have known better.

    Very poor comparator.

    On that note, in this situation, walking three abreast on a wide trail that bikes come down is also a poor decision. Not saying the cyclist doesn’t bear some, or even most, of the fault, but it’s not a one-way street.

    Note: While chatting with an EBRPD cop at a trail intersection in Diablo Foothills RP a month or two back, he said the biggest problem they have, with the highest number of complaints, is off-leash dogs.

    Some perspective, from somebody who hikes and bikes and has been on both ends of things (though never even come close to hitting anybody).

    • Hey back, Colin… and thanks for writing. We realize the accompanying video was not an exact representation of the issue seen on the trail that very day but it was a fair demonstration on how quickly things can go wrong for both riders and walkers and riders who are off and walking at the base of a jump – as was seen on that vid. We like perspective and the fact that you took time to add it. We hear from dozens of riders every week and we know these issues are of interest.

      Thanks again!

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