Just check out their GPS routes.
grasshopperadventureseries.com
Grasshopper Adventure Series – Epic two-wheeled adventures in Northern California

There is for sure a road that goes up the Moore Creek side, and a gravel loop that goes around the lake side, but I would not want to go up or down DWR wo suspension. You could probably do the "Old" DWR section fine , but it would not be especially fun imo.Is Moore creek considered a gravel trail type place?
Thanks. I only ask because I love going to Moore creek but I thought it was more of a trail bike type place than a gravel so I was checking my definition against someone with more experience than me.There is for sure a road that goes up the Moore Creek side, and a gravel loop that goes around the lake side, but I would not want to go up or down DWR wo suspension. You could probably do the "Old" DWR section fine , but it would not be especially fun imo.