I've ridden and driven all of the roads there many times. They are awesome
DS roads. There are a number of ways to go. From Kemmerer, Hams Fork Road north, then west via Big Spring (a huge natural spring) to Smiths Fork Road and then Greys River Road is terrific. There is much more. Emigrant sites are well signed, and there are quite a few graves.
Perhaps Monday I will post some pics and specifics for you. Meanwhile, if you read Dockingpilot's five-star Forever West
RR, it includes much of that area of Wyoming, as well as Dinosaur Nat'l Monument. Could be just what you're looking for.
Oh, don't forget to stop at the Cheeseburger Factory in Alpine; great little place.