Big Horn River

Big Horn River Fly Fishing aka “Wedding of the Waters” comes with history and excitement. While most people relate the Big Horn to the famous stretch of water outside of Fort Smith, Montana, Wyoming natives think otherwise. Although we may be biased, we believe our stretch of the Big Horn River gives the Montana stretch a run for its money.


The Bighorn is another famed Blue Ribbon fishery that sits nearest to the town of Thermopolis, Wyoming. Thermopolis is located about two hours North West of Casper. This tailwater fishery is stabilized by the dam and rich in nutrients. These conditions make for a healthy fish population. The Bighorn is a tributary of the Yellowstone River, and is completely separate from the North Platte drainage system. The upper most portion of the Big Horn is called the Wind River. This is the name of the river as it flows through the reservation. Once the river hits Boysen Dam, it is called the Big Horn. The area where the Wind River turns to the Big Horn River is fittingly coined as “The  Wedding of the Waters”.

Cut throats, Rainbows, Brown Trout

The Big Horn boasts a fish count around 3,000 per river mile. The stretch consists of mostly Rainbows, Browns, and Cutthroats with an average trout size of 16 to 18 inches. The Big Horn has a multitude of protein staples in its waters including an abundance of scuds and leeches. This is due to the high alkaline content in the water that comes from the local hot springs. These protein sources coupled with prolific hatches are what makes the trout in this section eager to eat. Whether you prefer to fish nymph rigs, dry flies, or chuck streamers, you will find any fashion is productive on the Big Horn.


Hot Springs State Park

Another reason that the Bighorn is different from any other river in the area is that it flows through Hot Springs State Park. Is that it flows through Hot Springs State Park. Cold day on the water? Not a problem on the Bighorn. Just hop out of the boat and right into one of the natural hot springs. 


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