Bighorn River Fishing Report Wyoming River Flows: The Bighorn River flows are starting to bump up due to the amount of snow in the Wind River and Owl Creek Mountains. Flows have ramped up from 900 to 1525 cfs as of today. Boysen Reservoir is currently 88.8% at capacity. It is expected that the river will soon be up to 2100 cfs. Keep posted to see when the Spring Flush will be happening. It will be this month and more info coming tomorrow. To see most current releases from Boysen Dam: Wind River and Bighorn Rivers click HERE. The Bighorn River was off color and had quite a bit of moss floating in it yesterday, but the weather, company and fishing were great. The moss and clarity will only get better as the river flows stabilize. Hot flies: annelids, sow bugs, streamers. Keep posted for Green River water flow information coming soon. It is going to be a big water year!