From their web site:
2018 Filthy 50+ MTB Ride with Benefits

The Fifth Annual Filthy 50+ will take you through various areas of San Dieguito River Park and Black Mountain Park. Fast and flowy for all skill levels. The 30 mile riders will head out and turn around at the 15 mile mark and the 50+ mile riders will continue on to the Black Mountain Park area where you will encounter a NEW lollipop and new trails to go with it! The course will be fully marked with course tape. Fully stocked feed stations will be placed throughout the ride to keep you fueled up.

There will be a kid's ride at 9:15am. Awards will be given out immediately following the kids ride. Registration for the kid's ride will be online and onsite.

When riding the course please be aware that the trails will be open to the public so please pay attention to other riders, hikers, and horseback riders. Please pay special attention when riding the switchbacks portion of the course and use courtesy when passing. Thanks!

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I don't think anything will be at CV. They wouldn't be able to get a permit for it. Those poor Pivot reps didn't even get to set up a popup before Ranger Danger stopped them

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You never know what tomorrow will bring so go ride your EBike today or walk your pooch
Fear the Yeti

Mike

Yeah, I didn’t make it clear that I was questioning the location of the sign, not the location of the race. The sign states the race is in San Pasqual at Bandy Canyon Rd.

Saw that sign on my ride the other day and had a good chuckle.