not sure who built those but they have been there since the late 90,s in some shape or form
They're in perfect riding shape as of last week sometime. If you like Heckyl n Jeckyl, you'll like these, but there's no berms, and it takes bout 10 seconds to ride them all, but you know… short hike back up
I'm happy to get outside and enjoy nature while I can, but I fear for the future of humanity