I've been riding the trails in the Lake Dennison region since March, and have several hundred miles. I have yet to see any other riders, but am starting to see more cars with each passing ride. They have the access gate open so people are starting to hike and fish the area. I guess once the camping sites are open I'll see bikers once and a while. Here was today exploration ride.
https://www.youtube.com/watch?v=K7vIzJZKlI8