The Lower Blue below Green Mountain Reservoir is a great stretch of public water. It is technically a "tailwater" flowing out of GMR, but it fishes more like a freestone river on some days. There is healthy and diverse population of aquatic bug life, this keeps the Gold Medal trout population well fed. The Lower Blue is fishable both by foot and river craft at certain river flows. call the shop for the most current conditions.
*The Lower Blue is not available for any type of commercial guiding, and no shuttle services are offered for this piece of water.*
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River Flow (Cubic Feet Per Second):
Flows have just jumped to 350 CFS which is still nice for wade fishing, but keep an eye on the gauges here flows could be changing quickly.
Water Temperature (degrees F):
High 30's through upper 40's
Crystal clear most of the time.
Current Food Sources:
midges, Baetis, caddis larva, golden stonefly nymphs, eggs, worms, smaller fish
Flies to Try:
Guides Choice Dozen $24.99
TDJ Golden Stone size 8-14 | Tungsten CDC Flashback Hare's Ear size 14-18 | K's Latex Caddis larva size 16-18 | Ju-Ju Baetis natural or red size 18-22 | Rainy's Real Meal olive Size 20-22 | Flashback Pheasant Tail size 18-22 | Darth Baetis grey size 18-22 | Zebra Midges size 20-22 | Pegged Eggs Gold Roe, Peach Pearl, Montana Roe, or Ruby Roe |
Parachute Adams size 14-2 | Parachute Extended Body BWO size 18-22 | I-Wan-E Dun BWO size 18-20 | CDC Morgan's Midge 18-22 | Umpqua Adult Midge Dark size 18-24
Baby Gonga tan, rainbow, and black | Big Gulp Sculpin black size 4 | Mini Loop Sculpin natural | Slump Buster black or natural size 4-6 | Pop's Bugger pearl/grizzly size 8 | Ishiwata's Articulated Snitch olive size 6 | Crystal Bugger white size 12 | Leeches in wine or black
guide tip of the week:
Have a look at this beautifully crafted lower blue report from our guide Mike Wallace.....
INTRO: The stretch of Blue River below Green Mountain Reservoir is a beautiful
canyon that hosts a healthy population of large trout. I ventured in for a few days as
the flow was being pinched down from 425 cfs to 250 cfs. As of this report it still
holds steady at 250. This is a great flow for wading and sight casting to large fish,
which are now relocating out of the deeper pools and into more visible lanes in the
medium water. Look for them to be holding in 2-4’ depths near seams and shallow
pockets. There are some reds on the gravel bars in less than a foot of water so as
tempting as it is to cast to them, please leave these gals alone.
CFS: First Day – 425, Second Day 350, Third Day 250 and holding there.
WX Cond: Mostly Sunny, light winds 5-15, Highs upper 40’s.
Water Clarity: Gin clear – 4-5’ in the pools.
Water temp: 36 near the dam, 38 deg 2 miles into the canyon.
Trout Holding: – Deeper pools first 2 days and scarce, third day many were
relocating to shallower seams and pockets, easily spotted (and spooked) from the
bank. Found a well stocked seam/eddy/drop about 1.5 miles in just below a rapid.
Many browns holding up high feeding on midges and sparse BWO nymphs,
emergers, and dries, along with #8 black pickles. The rainbows were sitting in the
tail-out, feeding on black pickle, BH hare’s ears, and Grey Darth Baetis - 20.
Noticeable Changes: hatches were dependent on Sun to Cloudiness ratios. Midges
were plentiful when the sun warmed the water coming across shallow gravel bars.
Then the clouds would move in; a very sparse BWO hatch happened on the third
Access: Most of the seasonal snow is melted off. Just a few technical snowfields
remaining in sheltered north facing steep slopes so be careful. Most of the steeper
slopes will be day to day at this point depending on precip amounts.
Guide Tip of the Day: You will see experienced fly fishers here. Good etiquette is
expected and be mindful the “appropriate” distance between anglers is much larger
here than in the Silverthorne tailwater. This canyon is large and offers many spots
holding multiple fish. On that note, plan to move and sight cast to feeding fish as
well as working the prime lies. Multiple river crossings will get you further into the
canyon and while not too treacherous at 250 cfs, a wading staff (hyperlink to wading
staff in online shop) is a big help. To get the most out of this place, pack a lunch and
spend the day; you’ll find the rewards of the canyon and the fish well worth the
Flies: The standard list applies in all categories, I’d add black #8 pickle to the menu
Producers were Juju Baetis red #20, grey Darth Baetis 18-20, and Tung Hare’s Ear
#16. Turned some heads with a Mini Ganga Rainbow streamer but couldn’t get
them to commit.
Current Conditions on the Lower blue....These pictures are from Mike Wallace, in reference to the report above.
Baetis nymphs and midge larva, staples of the Lower Blue.
Caddis Larva are also plentiful here.....
A look at the trail in. Almost snow free, but it is steeper than it looks!
The water is looking quite nice.
Sending one home.