Welcome to best fishing site, on the net!
The owner's, I believe, is Dalton Rock. But, I'm not sure if they are the current owners. Plus if it is them...getting any info from them--at least for me--has been like pulling teeth.
At any rate: this reservoir, is ONLY open to motorized vehicles during the month of NOVEMBER. NO motor vehicles, are allowed at any other time. No exceptions. Period. They are VERY strict, due to some dumb arse causing a fire years back. The game wardens, during November, also strictly enforce the rules up there.
Outside of that November time frame, it is a 6.5 mile HIKE or BIKE ride gig. ONE way. Then, 6.5 mile HIKE or BIKE trip back to your parked rig.