Wyoming Fishing Reports ยท North Platte Region
Below Gray Reef Dam near Alcova, the North Platte is one of the most productive tailwaters in the West, a big, easy-to-float river with thick rainbows and browns and lots of public access.
Looking for the latest Grey Reef river report? This page is updated by the AvidMax fly shop team with live flows, current conditions, hatches and the flies working now on the North Platte River โ Grey Reef.
Current flows
Wind forecast
Grey Reef fishing report
Updated November 7, 2026.
The gauge just above Gray Reef Reservoir shows the Platte running well above its usual fall level. Higher water spreads fish out and makes drifts from a boat the best way to cover it.
Worms, scuds, leeches and small midges are the staples here. Run a San Juan Worm or scud with a Zebra Midge trailer under an indicator, and strip a leech or Woolly Bugger on gray days. Browns are spawning, so watch for redds on the gravel bars.
Load your fly box
Before you head to Grey Reef, bring: San Juan Worm #10-14, Kaufmann', s Scud #14-16, Zebra Midge #18-20, Mini Leech #8-10, Woolly Bugger #6-8, Pat', s Rubber Legs #8-10, RS2 Emerger #18-22, JuJu Baetis #18-22, Pheasant Tail Nymph #16-20, Black Beauty #20-24, Egg #14-16.
Flies working right now
The flies above that we have in stock right now.
Grey Reef details
| Access | Gray Reef Dam access area and a string of public boat ramps and walk-in areas downstream along State Highway 220. |
|---|---|
| Elevation | About 5,300 ft |
| Nearest town | Alcova, Wyoming |
| Best season | Year-round |
| Fish | Rainbow and brown trout |
| Regulations | Special trout limits apply on parts of the North Platte. Check the Wyoming Game and Fish Department regulations for current rules. A Wyoming fishing license is required for anglers 14 and older. |
| Leaders and tippet | 9 ft leaders, 3X to 5X tippet |
| Camping | Alcova and Pathfinder reservoir campgrounds, and BLM sites near the dam |
| Kids | Partly. Easy bank access at the dam, but the river is big. |
| Good to know | Flows can change quickly with dam operations. Check before you wade. |
Fishing by season
Winter
Steady winter flows, midges and worms.
Spring
Rising flows, worms and big rainbows.
Summer
Caddis, PMDs and crayfish.
Fall
Streamers, BWOs and spawning browns.
How to get there
From Casper, take State Highway 220 southwest about 30 miles to Gray Reef Dam.