Spring Fishing at Jemas Ranch

essure this time of year, the brown trout and rainbow trout are large and plentiful. Veteran fly fishers love fishing the spring in Wyoming’s Green River. It’s the best time of year for the biggest trout and the smallest crowds! Jemas Ranch’s Spring season opens on May 15. You can end the day or even start the day fishing our private lakes, streams and ponds without ever leaving the property. With little angler pressure this time of year, the brown trout and rainbow trout are large and plentiful.

Springtime Wyoming Wonders

Springtime in Wyoming is signaled by the call of the meadowlark, a medium-sized songbird with a bright yellow chest. The song of this state bird indicates a reawakening from months of a winter freeze that’s turned trees barren, made hares white and sent bears to dream in hibernation.


As temperatures rise to the mid 60s by mid May, the snow from the majestic Wind River Range continues melting, creating the headwaters for the great Green River. The spring runoff fills the river and its streams with frigid water, prompting the rainbow trout to spawn. The insect world follows suit, and the top of these beautiful waters becomes a fertile breeding ground for insects. June means the famed green drake and gray drake hatches, plus the blue damsel and green damsel hatches.


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“The Green River is one of those places that can get into your soul. It’s a relationship that can become part of who you are.”

 – Larry Trullis

Wyoming’s Green River


The melting glaciers and runoff from the mountain snow form the headwaters of the Green River, one of America’s natural national treasures. This majestic body of water runs for 730 miles, crossing into Colorado before meeting up with the Colorado River in Southeastern Utah.


Wyoming’s portion of the Green River is home to six species of trout:

Rainbow trout

Brown trout

Cutthroat trout

Mackinaw Trout

Brook trout

Golden Trout 

Other types of fish you may catch include:

  • Native mottled sculpins
  • Speckled dace
  • Mountain Suckers 


Summertime hatches include the green drake, the gray drak, the blue damsel and the green damsel.

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