Hi SWD,
There is a great community campground at Sparwood. I've enjoyed it 3 times.
I enjoyed staying at Lundbreck Falls (no cell phone service) There are upper and lower campgrounds.
There is a campground on the north side of the road after Frank's Slide. It looked to be community run, but is nothing special.
Fernie has a BC Provincial park campground. No services at sites.
Be sure to fill up just before the BC border. There is an environmental charge on all fuel in BC (I think 15 cents per liter).
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.