The Blue River North of Silverthorne town limits contains some beautiful public water and breathtaking views.  Unfortunately, it does not boast the highest trout population in some of its public sections.  This does not mean there no fish to be caught, but you may have to be patient and work a little harder to hook up.  However, you do always have the shot at hooking the fish of a lifetime, a large trout that usually reside in private sections of the Blue sometimes venture into public waters.  Happy hunting.


Nymphs To Try: TDJ Golden Stone size 10-16, Moorish Anato-May olive size 16, Pheasant Tails and Hare's Ears size 16-18, olive or grey Sparkle Wing RS2 in size 18-22, Buckskin Caddis size 16-18, Charlie’s Chronic Caddis chartreuse size 14-16, Zebra Midge black, olive, or red size 18-22, Poison Tung blue or green size 18-22

Streamers To Try: Barely Legal olive/white, Home Invader tan or black, Double Gonga rainbow or brown trout, Slump Buster various colors, Wooly Bugger various colors 

Dries To Try: Chubby Chernobyl olive or gold size 10-14, KK’s Henneberry Hopper size 12-14, Hippy Stomper chartreuse or yellow size 12-16,  Parachute Adams size 14-22, Extended Body Blue Wing Olive 18-22, Matthew's Sparkle Dun Baetis size 20-22, CDC Morgan's Midge 18-22, EZ Caddis tan size 14-16, Elk Hair Caddis Yellow 16-18




       The Blue River north of town is flowing about 200 CFS with water temps in the high 40’s.  We are still seeing some action on large golden stones, small yellow sallies, with a few caddis here and there, but the most prevalent aquatic insects as of late have been Baetis and midges, especially in the emerger form.  A hopper-dropper set up could still be an effective method to present nymphs/emergers, as there are still some active terrestrial insects along the banks.  The only disadvantage of the hopper- dropper rig will be the inability to get your nymphs deep into the water column if need be, so come prepared to fish a nymph rig as well.



       The Blue River north of town is flowing about 200 CFS with water temps in the upper 40’s.  The main hatches on the Middle Blue this time of year are Baetis and midges, but you could see some caddis and PMDs mixed in as well.  Terrestrial insects will also still be important until we start to see consistent heavy freezes, and the drier conditions we have been seeing often causes these insects to gravitate towards rivers and lakes to hydrate.  A hopper-dropper, or nymph rig will be go to set up currently.  Single, or double dry flies can be a good choice if you are fishing during a strong hatch with rising trout.



       The Blue River north of town is flowing about 300 CFS with water temps in the mid 50’s.  If you have been waiting to fish your favorite spots on the Blue at a more reasonable flow, now is the time.  Large caddis larva, and golden stonefly nymphs will be good choices for a heavy anchor nymph in this stretch of water.  Below the anchor nymph matching the current hatch is a good idea, and we have been seeing BWOs, PMDs, caddis, and midges hatching here currently.  An indicator, or larger hopper are both viable options for a means of drifting these nymphs though the water.



       The Blue River north of town is still flowing near 500 CFS.  We have not had a lot of great reports coming back from the Middle Blue, but it is one river where there is always a chance of hooking a large trout even when it is fishing slow.  Baetis, and midges have been the strongest hatches most recently, with a few PMDs, Yellow Sallies, and caddis in the mix as well.
       A nymph rig, or large hopper-dropper set up are both good rigs to fish here at the moment.  In either case a heavy attractor nymph is often used to penetrate the water column quickly, and capture the trouts attention.  Smaller imitations of currently hatching insects should be trailed behind the larger attractor nymph, in order to offer trout a more natural option if they are being particular. 



       The Blue River north of town is settling down into a nice flow, at about 500 CFS.  These flows will allow trout to hold in more typical water such as riffles, pocket water, and deeper holes behind river structure.  Larger aquatic insects such as golden stoneflies, and Cranefly Larva are always staples in a trouts diet here.  When decent numbers of smaller aquatic insects are active trout will focus on eating those species.  Our most consistent hatches at the moment are PMDs, Baetis, and midges with a few caddis mixed in.
        A nymph rig, or large hopper-dropper set up are both good rigs to fish here at the moment.  In either case a heavy attractor nymph is often used to penetrate the water column quickly, and capture the trouts attention.  Smaller imitations of currently hatching insects should be trailed behind the larger attractor nymph, in order to offer trout a more natural option if they are being particular.



       The Blue River North of town in still flowing on the “fast” side of things at about 700 CFS, but there is still good holding water for trout in the numerous public easements between Silverthorne and Green Mountain Reservoir. We have been seeing hatches of large golden stoneflies, yellow sallies, small tan/brown caddis, crane flies, PMDs, and Blue Wing Olives.
       During, or just after hatches trout can often be taken on dry flies, but if there is not much in the way of a hatch going on nymph fishing will be the best bet.  Look for back eddies, wide areas of the river with softer riffles, and deeper holes with mild current to hold fish at this point in time.



       With about 800 CFS of water being released from Dillon Reservoir the Blue River north of town is still moving a bit fast, but areas of “softer water” can produce some nice trout.  Sometimes the fabled “hogs”, which normally hide in private stretches of water, are displaced by the higher flows, and can be caught in public water.  Higher flows can also entice large trout which normally reside in Green Mountain Reservoir to swim upstream and forage for food in the river, so look for these fish in softer holding water upstream of the Blue River inlet into GMR.  
       Current hatches include tan colored caddis, Yellow Sallies, PMDs, Baetis, and midges.  These insects are best fished in the nymph, or emerging (hatching) form, although there has been a bit of surface feeding activity happening on some days.  A nymph rig will be best for “blind” fishing deeper, holes, back eddies, and seams, while a dry/dry-dropper set up will be a good bet for targeting shallower riffles, or sight fishing to risers.    



The Blue River North of town is on the high side of the spectrum at about 800 CFS, but it can fish well at these flows, and is on the decline as snow melt starts to slow throughout the state. Water clarity is the typical gin-clear of most dam release rivers. Expect to see hatches of Blue Wing olives (Baetis), Giant Golden Stoneflies, Yellow Sallies, PMDs, caddis, and possibly Green Drakes down the road a bit.
       A nymph rig will be your best bet unless you see surface feeding activity from trout.  Target pockets along banks, and any back eddies, or other larger areas of slack water that exist as fish can be stacked up in these zones.



       It can be a good time to fish the Middle Blue as flows from Dillon Reservoir start to drop. Currently 1080 CFS of water is being released, down from the 1800 CFS of last week.  Fishing can be especially good if Dillon Reservoir fills all the way, and warmer water is released from the upper water column.  

      Warmer water temps create more activity from aquatic bug life, and we often see good hatches of Giant Golden Stoneflies, Yellow Sallies, caddis, PMDs, Green Drakes, crane flies, and more.  Dry fly fishing is normally the best when bugs are hatching, and trout are actively feeding on the surface, so unless you see fish rising then stick to a nymph rig. Consider using a large attractor pattern imitating a golden stonefly, green drake nymph, caddis larva, or crane fly larva as the weight in your set up. Trail the attractor with a smaller midge, mayfly, or yellow sally pattern.  Back eddies, and still water behind log jams, and other obstructions in the river canoe very productive here.


       The Blue River north of town is flowing high at 1800 CFS, but is still fairly clear on most days due to the majority of the water coming from a dam release.  A nymph rig with an indicator, and heavy attractor nymphs used as weight is a good option for the time being.  Attractor patterns should imitate golden stoneflies, caddis larva, cranefly larva, and larger mayfly nymphs.  Trailing nymphs could imitate small mayflies, small golden stoneflies, midge larva or emergers, and worms.



       With 1100 CFS of water coming out of Dillon Dam, the middle blue is running high.  Water clarity has been good on most days, but with this second wave of heat hitting us the last week we have seen off color water in the afternoons on the middle blue.  Things should clear back up after a week or so of hot temps, although the water will stay high.  Fish any "soft looking water you find with a heavy attractor nymphs followed by a smaller lighter pattern.  Golden Stonefly Nymphs, Cranefly Larva, baetis, Yellow Sally nymphs, caddis larva, and worms are all on the menu at the moment.



       The Blue River North of town has been hit or miss.  Some days have seen some off color water,  as the first “heat wave” of the summer brings down the first wave of higher elevation snow melt.  The clarity should steadily improve as most of the loose dirt is already being flushed out of the system.  Cranefly Larva, Golden Stoneflies, Baetis, Caddis Larva, midges, and worms are all viable food for trout at the moment.  The most action will be seen on a nymph rig until we see water temps on the Middle Blue rise slightly.  So come prepared with an indicator, split shot, and imitations of the bugs listed above.



              The Middle Blue often fishes best during higher springtime flows, and that time is now.  More water moving through the river can entice trout holding in private areas, and reservoirs to venture out and explore new territory in search of food.  A nymph rig with a larger attractor pattern such as a golden stonefly, or cranefly larva is usually a good idea. Follow these attractor patterns with smaller fair such as beatis, caddis, and midges.
        Warm days following fresh snowfall have been resulting in off color water in this section of river, so keep the weather in mind before you head out.  Eggs, worms, and streamers are always good choices to consider during these times.



       The Middle Blue River can be very hit or miss, but early spring is one of the best times to fish this section. Medium to small sized Golden Stonefly, Baetis, and midge imitations can be effective throughout the spring.  Egg and worm patterns are also effective at times, although they are not always a "go to" fly.  As flows get higher a large and heavy stonefly, or Cranefly pattern can be a great anchor.


While we do not wish to alarm anyone, please be aware that mountain lion signs are now fairly common on the lower river just above Green Mountain Reservoir. This area is often called Palmer's Gulch and the Blue River SWA.

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