Centuries ago, i detoured over to Tule Lake and just parked across the street from the west edge of the water.
It was Xmas Eve in the late 1970's. ((looking at a map, it must've been Hill Road))
As an off-road snooze-in site, it was fine ... except we were kept awake all night by the sounds of the Snow Geese in the lake.
The next (foggy) morning we drove through the narrow roads between the lakes ... fence posts would loom out the fog and disappear as we passed them ... and about every 3rd post had a hawk standing on top of it. At a spot when the fog lifted, we watched a trio of Golden Eagles dancing on the ice.
Fast forward to somewhen between 2006 and 2012 ... this time (my memory says) we went east of the lakes, to the town of Tulelake.
And we found a fairgrounds (lots of buildings, etc) that had powered sites. ((but as i look at my map tonight, i'm not seeing it))
I'm pretty sure that was very near Tule Lake, since we drove over in the morning for another magical drive around.
update: it
was probably the Klamath County Fairgrounds:
https://www.kceventcenter.org/facility-map/
(541) 883-3796 (on the map, look for the "RV Pay Kiosk" on the right side)
My map *does* show the Blue Herron RV Park (yes, two r's) about 6 miles east of Henley/Hornbrook on Copco road, before you get to the Iron Gate Reservoir.
(530) 475-3270 https://klamathranchresort.com/
"Open All Year" ... but $59 a night.
My map (DeLorme California Gazetteer 2010 edition) shows a "public campground" (no info) on "Old State Highway" about 8 miles south of the town of Mount Hebron, and a mile or two south of Jerome. That's just a bit east of US 97. (my frequent bypass route to avoid snow blockage of I-5 at Grants Pass) That CG is at a corner of NF and private land, so it may be available. (i.e. not NF)
--dick (Scratching the wife's memory, we may have found it in a Woodall's directory, and then she suggested Klamath County FG)