Overnighting Sites & Sights in the
Douglas & Wheatland Area. Includes Guernsey & Fort Laramie Area.
Guernsey State Park -------
Fort Laramie National Historic Site ------
Oregon Trail Ruts and
Register Cliff We've gone by Thermopolis, WY twice to do a soak in the hot spring water at the State Bath House. Very neat. We overnighted in the Wind River Canyon in Aug '09 & at one of the Boysen State Park campgrounds by the lake some years ago. But each time, we had already gone to Yellowstone, before stopping.
thermopolis.com/todo/hot-springs-state-park/But Thermopolis is not on your route, it is up US 20 from US 26 at Shoshoni; West of Casper.
I've never driven the route you asked about.
Happy Trails.