Please help with your advice. My husband and I and our 3 children (9,7,4) are going to a dude ranch near Granby in July for a week. We are flying into Denver and would like to spend the week before the ranch visiting Rocky Mountain National Park and the Dinosaur National Monument. We are undecided between booking hotels or hiring an RV which we have never done before. We are also unsure how much time to allocate to these attractions. All help welcomed!