Re: Grand Targhee Resort

RV Parky shows one in Tetonia and one in Victor - not sure if they offer monthly rates, but if you want hookups on the Idaho side of the Tetons, that's about it.

https://www.rvparky.com/location/teton-mountain-view-lodge-rv-park

https://www.rvparky.com/location/teton-valley-campground