(Portland, OR)  --  A Texas man was arrested in the Columbia River Gorge following a multi-agency effort to track down a suspected child predator.  Portland Police believe 60-year-old Steven Worth Ellis drove from Texas intending to meet a Portland teen he met online.  Investigators say he'd already rented a house for a week and was planning to take the girl there.  They learned of Ellis' plans Tuesday and partnered with Homeland Security and other agencies to make an arrest before he could meet up with the girl.  Ellis faces federal charges, including Interstate Travel to Engage in Sexually Explicit Conduct with a Minor, and Production of Child Pornography.