Any Gravel Ride Suggestions in Idaho, MT, WY, CO

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I'm headed out for a ramble around the West in my RV. I've been researching gravel rides along the way but would love any suggestions you might have. Here are our planned stops:

Stanley, ID
Ketchum, ID (will do the short route of Rebecca's Private Idaho)
Bozeman, MT
Jackson, WY
West Yellowstone, WY
Pinedale, WY (or Dubois, WY)
Steamboat Springs, CO

Thanks for any recommendations. Karen