What to expect fishing the Upper Green and New Fork Rivers


We float over 100 miles of water in drift boats fishing for browns, rainbows, and cutthroats averaging 14 to 22 inches. The Green River and its tributary, the New Fork, are small by western standards and gentle and meandering, with slow long deep pools and wide flat shallow riffles. We float through private property and some federal lands in 15' Clacka Craft low profile drift boats.


In July and well into August, these two rivers have tremendous hatches of grey drakes, green drakes, and pale morning dun mayflies. Carry lots of #16, 14, 12, and 10 Parachute Adams. August and September are excellent for terrestrial fly patterns like beetles and grasshoppers. Bring fast action 9 foot, 5 or 6 weight fly rods with quality reels.


The season starts in early July after runoff and goes into September. Typical summer weather has morning lows of 30 - 40 degrees and afternoon highs of 70 - 80 degrees. Extremely low humidity makes for very comfortable days. Afternoon winds are typically 10 to 20 mph. Most days are bright and sunny, but there is always a chance of a pop up thunderstorm. Elevation is around 7,500 feet so high UV index requires long sleeves and pants, broad brimmed hat, polarized sunglasses, boat appropriate shoes, and lots of sunscreen.


The Green and New Fork begin in the high elevation snow fields of the Wind River mountain range and flow southward through the high plains desert and irrigated cattle ranch country for almost 200 miles before entering the Flaming Gorge in Utah. We fish the headwaters of these rivers, which are wide open and free flowing. The general area is approximately 70 miles southeast of Jackson Hole and just west of the massive Wind River mountain range. Trout are wild and not heavily pressured so they are not generally picky about fly patterns, nor are they leader shy. They fight hard, so quality fly rods and reels with good drags are a must. This is a windy area and requires more than beginner skills in casting. We will put you within casting range of hundreds of fish in a typical day.


Expect incredible midday dry fly action on some of the least pressured waters of the west. Big wild trout on dry flies, small crowds, great summer weather, lots of wildlife, and spectacular scenery.