Thank you all for your help. The route looked OK on Google maps, but a friend told me it was very curvy and narrow so it worried me a bit. I take my time and drive slow (retired), so judging by what you all say I should be fine. We are looking forward to spending a week at Harris Beach State Park.
Thanks again and safe travels.
2013 GMC Sierra 2500HD 6.0
2014 Surveyor Sport 220RBS