Location. The Oxford Suites Gladstone is located in Gladstone, Ore., overlooking the Clackamas River. Three miles from Clackamas Town Center Twelve miles from Downtown Portland, Ore. Twelve miles from Portland International Airport Hotel Features. Complimentary wireless Internet access in public areas Indoor pool, spa tub and sauna Complimentary breakfasts Guestrooms. Complimentary high speed Internet access Cable television Microwave ovens, refrigerators and coffeemakers