Colorado 2016

My husband and I travel the month of September each year. Beginning to plan for next year and Colorado is where we are heading.was wanting to get some suggestions. We travel in a 31 foot motorhome with a tow car. My husband enjoys seeing wildlife and we both enjoy beautiful scenery. We are not hikers and at our age don't relish driving a MH over 12000 foot mountains. We like setting up in one place for several nights and touring in our car. Coming from Missouri and would like some ideas. Looking at highway 14 over to Walden but not sure of the road. Also liked the look of Rifle state park. I know any trip to Colorado includes mountain driving but just don't want any of the white knuckle driving and narrow roads, Which are fine in the car just not in the motorhome.