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Lost & Found Gravel Grinder – 2024

June 15

Grinduro 2019

The Lost & Found Race Series is one of our favorite mountain bike racing series in the US. The 1st stop of the Lost & Found Racing series is the Gravel Grinder near Lake Davis. Last winter in the Sierra Nevada was the wettest winter ever recorded, resulting in an amazing array of wildflower colors, lush green meadows, flowing streams and spectacular snow-capped peak views. Everyone is in for a visual treat courtesy of Mother Nature. But last winter also did a number on the dirt roads you’ll be riding, and we want to give riders a heads up.

This year will be much more than just a “gravel grinder”; it will be a rugged and beautiful off-road adventure – Lost Sierra style – so plan accordingly. See you at Lake Davis on June 15!

~100 mile route – ‘Serious Riders and Racers’

  • Distance meant for race-pacers wanting to test their Strava, strength and mettle; and fit rider athletes looking for a strenuous challenge
  • 8,000 foot elevation gain
  • 80% dirt
  • 5 Aid Stations

60 mile – ‘Adventure Rider’

  • Distance meant for a long ride experience while appreciating views and serenity; equivalent to a century road ride
  • 5,000 foot elevation gain
  • 70% dirt
  • 3 Aid Stations

35 mile – ‘Good Times Rider’

  • Distance meant for seeking social, scenic fun ride, laughs, and great views
  • 3,500 foot elevation gain
  • 35% dirt
  • 2 Aid Stations

Gravel Grinder 2024 – Event Schedule

Fun for Riders, Families and Friends

Friday Night Packet Pick-up Welcome Party

  • Location: Portola City Park
  • Onsite registration & check-in: 3:00 pm – 7:00 pm – try to walk or ride your bike to check-in
  • Live Music by Danny Horton
  • Snacks and adult beverages:
    • Adult beverages available – 3:00pm to 6:30pm
      • All beverage proceeds go to trails too!
      • Registered riders/racers get a ticket for a beverage
      • Volunteers get a ticket for a beverage


In partnership with the City of Portola, we have a full evening of festivities planned on Saturday.

  • Ride start times: 8am start as mass roll-out for Longest racers and 9am start as mass roll-out for Longer and Long mile racers. All categories will stage at least 15 minutes prior to start time for instructions on completing the ride.
  • Post ride recovery in Portola City Park starting at 12pm including post ride meal (12-6pm) for registered riders and volunteers for free and food trucks also available 
  • Post Ride Party Saturday in Portola City Park with food, beverages, live music, and dancing till 10pm – the way we like to do it!
    • Events Camping in Portola – includes showers.
      Consider camping onsite at Portola City Park for convenient partying opportunities.
    • Awards Ceremony – 3pm to 5pm
      Will be held at the stage to celebrate the victors in style.
    • Live Acoustic Music from Johnny Walker & Greg Willis (sample!) – 12:30pm
    • Live Music from singer/songwriter Jack Danny – 4:00pm
      Jack Danny is a Portola local who will be playing outlaw/folk rock to get the crowd warmed-up for the evening’s festivities and post-ride vibe. His unique sound and kick drum always make for a good time. (sample!)
    • Free Kids Races – 5pm
      Kid’s evening races around the park – all ages welcome. Three groups from small to tall. This is a fun race just for the kids to have some fun on their bikes too – sponsored by the Plumas County Sheriff Association. We will have forms posted to fill out and bring onsite to the race. Onsite registration will also be available.
    • Lost and Found Expo – yes we’ve even got shopping!
      • Sierra Buttes Trail Stewardship merchandise booth
      • Yuba Expeditions booth
    • Tasty adult beverages will be provided by our sponsors at our Beverage Garden in Portola City Park.
      • Food will be available on Saturday along with local food vendors.
      • ID Required for adult beverages
      • Purchase beverage tickets with CC or cash (no checks)
      • Adult beverages will be available on Friday from 3pm to 7pm and Saturday from 12pm to 9:30pm
      • Awards for Long, Longer and Longest racers are scheduled from 2pm to 5pm.
    • Live Music – 6:00pm
      Joy and Madness will bring their infectious jams and get down sounds on Saturday night in the park. Expect to move your booty! “Joy & Madness brings a modern classic pop sensibility to a new age of joyous funk and soul reaching audiences in a way that few live performers can.”


Choose your own adventure! Check out the fun things to do in Portola below!

  • Fun at Lake Davis
    • Hiking, biking, fishing, paddling, sitting in a chair recovering peacefully
    • Rest sore legs
    • Attend to sunburns for those who didn’t use sunscreen on Saturday
  • Eventually pack-up your stuff and roll out or stay longer (camping goes through Monday!)


June 15



Portola City Park
Portola, CA 96122 United States + Google Map