Tolong jelaskan mengenai R dari Daftar kota di Oregon

Rainier - Rajneeshpuram - Redland - Redmond - Reedsport - Reedville - Remote - Rhododendron - Rice - Rice Hill - Richland - Rickreall - Riddle - Riley - Ritter - Rivergrove - Riverside - Riverton - Rockaway Beach - Rockcreek - Rogue River - Rome - Rose Lodge - Roseburg - Rowena - Roy - Ruch - Rufus