The closest we stayed to a dude ranch was a resort on the east side of Mount Hood in Oregon. The place was Indian owned and was called Kahneeta. It had a number of full hookup RV sites, but you could stay in teepees or resort lodging. Other than the two hot spring heated massive pools, Kahneeta offered horseback riding, guided kayak trips down the Warm Springs river, their own golf course,, and a small casino on the hill. Our family loved the place and we stayed once a year for 14 years running. So many memories, but not many dudes out there.
Unfortunately, Kahneeta closed due to mismanagement. The news has reported recently that some new money is being injected in an attempt to reopen. I hope so.