Photo #5798 - Bluff, Utah - City Limit / Utah Highway SR 163 Junction SR 163 provides access to Aneth Oil Field, one of the major producing fields still operating in the western United States. Utah Highway US 191 is southeastern Utahs main artery, interlinking beautifully sculpted canyons, breathtaking red rock formations, majestic snow-capped mountain peaks, rugged and colorful high desert beauty, geological treasures, mysterious prehistoric ruins and rock art, historic sites, a myriad of recreational opportunities and old-fashioned western hospitality.