Trip planning summary
Use this page to check rules, flow, access, hatch notes, flies, and tactics before planning a trip.
Check the current rule before fishing. Seasons, limits, methods, and closures can change.
Open the gauge or source context before wading, floating, or driving to the river.
Use legal public access and confirm posted, park, tribal, or private boundaries.
Source review queued. Fly notes are planning guidance; current rules control.
| Month | Hatch | Time of Day | Recommended Fly Sizes | Popular Fly Patterns |
|---|---|---|---|---|
| January | Midge | Afternoon | 18-24 | Griffith’s Gnat, Zebra Midge |
| February | Midge | Afternoon | 18-24 | Griffith’s Gnat, Zebra Midge |
| March | Midge | Afternoon | 18-24 | Griffith’s Gnat, Zebra Midge |
| Blue Wing Olive | Afternoon | 16-20 | Rusty BWO, Adams | |
| April | Midge | Afternoon | 18-24 | Griffith’s Gnat, Zebra Midge |
| Blue Wing Olive | Afternoon | 16-20 | Rusty BWO, Adams | |
| May | Blue Wing Olive | Afternoon | 16-20 | Rusty BWO, Adams |
| Caddis | Evening | 12-16 | Elk Hair Caddis, X Caddis | |
| June | Caddis | Evening | 12-16 | Elk Hair Caddis, X Caddis |
| PMD | Afternoon | 14-18 | PMD Sparkle Dun, PMD Thorax | |
| July | Caddis | Evening | 12-16 | Elk Hair Caddis, X Caddis |
| PMD | Afternoon | 14-18 | PMD Sparkle Dun, PMD Thorax | |
| August | Caddis | Evening | 12-16 | Elk Hair Caddis, X Caddis |
| Terrestrials | All Day | 10-14 | Hopper, Ant Patterns | |
| September | Caddis | Evening | 12-16 | Elk Hair Caddis, X Caddis |
| Terrestrials | All Day | 10-14 | Hopper, Ant Patterns | |
| October | Blue Wing Olive | Afternoon | 16-20 | Rusty BWO, Adams |
| Terrestrials | All Day | 10-14 | Hopper, Ant Patterns | |
| November | Midge | Afternoon | 18-24 | Griffith’s Gnat, Zebra Midge |
| December | Midge | Afternoon | 18-24 | Griffith’s Gnat, Zebra Midge |
If you are an avid fly fisherman, the Green River below Fontenelle Reservoir is a must-visit spot. Renowned for its trout populations, particularly brown and rainbow trout, the river offers excellent fly fishing opportunities. Here are the best spots:
Catch and release regulations apply in some sections, preserving the high-quality fishing experience for future anglers.
The Green River originates in the windswept mountains of Wyoming, finding its source within the Bridger National Forest. It winds over 730 miles, carving a beautiful path through spectacular landscapes. Its majesty can be chiefly admired below the Fontenelle Reservoir.
The river’s history is rich and fascinating. It dates back to the time of the native tribes, having served as an essential source of water, transportation, and sustenance.
Today, the Green River below Fontenelle Reservoir showcases a powerful combination of nature’s artwork and human engineering, attracting countless adventurers and nature enthusiasts.
Sources checked
This river report has not yet received a full official-source review. Fishing rules, access, flows, and closures can change quickly; confirm current details with official state and local sources before planning a trip.
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No updates submitted for this river.