Rock River Valley

Rock River Valley as seen from Castle Rock. Oregon, IL

IL-20110528-0086

Castle Rock State ParkILILLINOIS DNRIllinoisIllinois State ParkMidwestNorth AmericaOgle CountyOregonRECREATIONRock RiverRock River HillsSpringUSAUnited Statesflowingforestmotionnatureparkriverriverbankstate parkstreamwater