adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-TRAVEL","nativepaywallcategory" : "NATIVE_PREM-TRAVEL"};DELTA, Utah — Looking out over the landscape today, a visitor might be hard-pressed to conjure up images of the vast ocean that once spread across the region. As far as the eye can see lie dry lake beds, shimmering with mirages stoked by tiny alkaline crystals of borax and potash.