The Blue River is a premier tailwater fishery located just below Dillon Reservoir near Silverthorne, offering Gold Medal water with exceptional opportunities for trophy trout. With convenient I-70 access and proximity to ski resorts, this river provides year-round fly fishing in one of Colorado's most accessible high-country destinations.
Winter months demand technical midge fishing skills, as cold water temperatures and selective trout require precise presentations and small fly patterns. Summer and fall offer more aggressive feeding periods with better dry fly opportunities, though the river remains productive throughout the year thanks to consistent reservoir releases.
Brown trout dominate the Blue River's population and grow to impressive sizes in these rich tailwater conditions, making them the primary target for trophy-focused anglers. Rainbow trout are also present and abundant, providing consistent action and excellent opportunities for both beginners and experienced fly fishers seeking quality numbers alongside larger specimens.
Always check the current Colorado fishing regulations before heading out. Regulations on Blue River may include special catch-and-release sections, artificial-only stretches, and seasonal closures. A valid Colorado fishing license is required.
Trout Bible pulls live flow and gauge data directly from the USGS National Water Information System. Current CFS (cubic feet per second) and gauge height readings are updated every 15–60 minutes, giving you the most accurate picture of conditions before you make the drive.