2017 Keystone RV Summerland Series 1750RD, 20017 Summerland 1750RD Rear den Travel Trailer 2017 Keystone RV Summerland 1750RD Vacation is the dream we carry with us throughout the year. It is the escape from our day to day cares and a place where we connect with those we love. Vacation is not just a location; it is a state of mind. When you are ready for vacation, Summerland takes you there.