Stay informed and ready to fish with our weekly River Reports, a trusted resource for anglers who want the latest conditions on Colorado’s most productive trout waters. Compiled by seasoned guides and staff at our Boulder-based fly shop, these reports cover everything from water flows and weather changes to hatch activity and top-performing flies. Whether you’re headed to the Arkansas River, South Platte, Big Thompson, or Boulder Creek, our reports give you the insight you need to plan a successful day on the water.

At the heart of Fly Fishing Colorado is preparation, and our goal is to help you match the hatch, adjust to conditions, and fish with confidence. Each report includes real-time advice, fly recommendations, and on-the-ground observations from anglers who fish these rivers daily. Visit our fly shop or check back here often. Our River Reports are updated regularly to give you the edge on your next adventure.