Bill, use this forum so others will know how to get there. When you get to Dunsmuir there is really only one exit. Go to the gas station and ask them where the Shasta Retreat is follow that to the railroad and follow the railroad track up hill. Park in the open space down by the tracks on the right side of the road. DO NOT PARK ON THE LEFT SIDE!
Best time is in the Morning, I repeat the Morning. Have fun Tim