Green River tailwater browns settle into fall rhythm

What's biting

What's next

Flow at gauge 09261000 is running 3,690 cfs and gauge 09234500 shows 1,880 cfs, a healthy volume that pushes fish toward softer water along the edges and behind structure. Expect Brown Trout to hold in those slower seams and inside bends rather than in the main current. With water in the upper 40s, the best action should come in the warmest part of the day, roughly late morning through mid-afternoon, when insect activity peaks.

MidCurrent's recent Tying Tuesday features point to small midge-style patterns that work in clear, pressured tailwater, and a beaded purple nymph built for low-light, overcast days. If skies turn grey, lean on those. On bright days, go smaller and lighter on the tippet.

The First Quarter moon gives moderate light at dusk, so evening sessions are worth a look for fish moving toward the shallows. Watch for any change in releases, since a flow shift would reset where fish hold.

Context

Mid-October is typically the heart of the fall brown trout season on Western tailwaters. Browns move toward spawning behavior from October into November, becoming more aggressive toward streamers and more visible on gravel. Cooling water in the upper 40s is typical for the period, and the system is on schedule for the seasonal transition rather than early or late. Anglers should avoid wading through gravel areas where fish may be spawning, and check state regulations before keeping any fish.