Wyoming Fishing Reports ยท Lakes ยท Upper Green Region
Big Sandy Reservoir near Farson is a windswept high-desert lake with rainbows and good-sized trout in productive years.
Looking for the latest Big Sandy Reservoir fishing report? This page is updated by the AvidMax fly shop team with current conditions, wind, stocking news and the flies working now at Big Sandy Reservoir.
Water level
Wind forecast
Big Sandy Reservoir fishing report
Updated November 7, 2026.
Water is low after irrigation season.
Leeches and chironomids along the drop-offs.
Stocking report
See the Wyoming Game and Fish Department for the latest stocking at Big Sandy Reservoir and other Wyoming waters.
Load your fly box
Before you head to Big Sandy Reservoir, bring: Mini Leech #8-10, Woolly Bugger #6-10, Zebra Midge #14-18, Balanced Leech #10-12, Balanced Bou Leech #10-12, Slump Buster #6-8, Egg #12-14, Scud Bomb #12-16, Clouser Minnow #2-6.
Flies working right now
The flies above that we have in stock right now.
Big Sandy Reservoir lake details
| Access | BLM access off US-191 north of Farson. |
|---|---|
| Elevation | About 6,750 ft |
| Nearest town | Farson, Wyoming |
| Best season | Spring and fall |
| Fish | Rainbow trout |
| Regulations | 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, 4X tippet |
| Ice fishing | Ice fishing. |
| Camping | BLM camping |
| Kids | Partly. |
| Good to know | Very windy. |
Fishing by season
Winter
Ice.
Spring
Ice-off.
Summer
Low water.
Fall
Fall trout.
How to get there
From Farson, take US-191 north to Big Sandy Reservoir.