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 are 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 8-14 | Tungsten Flashback CDC Hare's Ear size 14-18 | Flashback Pheasant Tail size 16-20 | olive or grey Sparkle Wing RS2 in size 18-22 | Desert Storm chartreuse or red size 20-22 | Disco Midge pearl or red size 18-22 | Zebra Midge black or red size 18-24

Dries To Try:  Parachute Adams size 16-24 | Stuck in Shuck midge size 20-24 | Solitude Midge black size 20-24 | Biot Soft Hackle Midge size 18-22 | Brook Sprouts Midge size 18-24 grey, cream, and black

Streamers To Try: Sculpzilla in black, olive, or natural size 4-8 | Near Nuff Sculpin olive and tan size 4-6  | Slump Busters natural and black | Pop’s Bugger pearl/grizzly, or black/olive size 8 | Bead Head Mini Leech olive/black size 08 | Crystal bugger white size 12

 

2/13/2020 

       River flows will be between 100-150CFS, with temps in the 30's.  There is fishable water from the outside of town unitll the Blue River Campground Area, but after that open water is spotty, as shelf ice is prominent.  Nymphing is the best bet here, using attractor style nymphs in combination with small midge and mayfly patterns. 

 

12/19/2019

        River flows are still near 200 CFS, but recent heavy snowfall combined with unusually low temperatures have a lot of the river locked up with slush and ice. Not much fishable water will be found North of the Blue River Campground at the moment, but from the campground into Silverthorne the river is still open and fishable.  A nymph rig fished near the river bed, featuring attractor style nymphs, and small midge larva/emergers will be the most productive angling technique at this time.

 

12/13/2019

       Flows here are 100-200 CFS with water temps in the 30's - low 40’s.  River banks are snow covered but the river is still open, and fishable.  Attractor style nymphs, with trailng Baetis nymphs, midge larva, and emergers are our go to imitations at the moment.  A nymph rig is most productive, but a few risers can be found here and there.  There has still been some signs of some late spawning going on, and egg patterns can still produce in duller colors as well.

 

12/06/2019

       The Blue River north of town is flowing about 150-200 CFS with water temps in the upper 40’s.  The Banks are snowy/icy but the river is still fishable.  Midges, and Baetis nymphs are the large majority of food sources for trout at this time.  Lingering Brown Trout  eggs, golden stonefly nymphs, and caddis larva could also be opportunistic meals for trout here.  Streamer fishing can also produce a few strikes here as well.

 

11/15/2019

       Flows are still nesr 200 CFS hear, with water temps in the low 40's.  Brown trout spawning activity is winding down, but egg imitations could still be effective here.  Weighted attractor style nymphs trailed by smaller, natural imitations of baetis, and midges are effective patterns for this stretch of river.  Streamers imitating small trout, and sculpins could also produce strikes at this time.

 

11/8/2019     

        River flows are still about 200 CFS with water temps in the mid 40’s. Midges, Baetis, eggs, and smaller fish are all food sources for trout here.  Nymph rigs are productive here, often fished with an attractor nymph as a lead fly, followed by small natural imitations of current food sources.  Streamer Fishing can also be good here at this time of year.

** If you are looking for Kokanee Salmon this is not your best bet, the population in Green Mountain Reservoir is very low **

 

11/1/2019

       River flows are near 200 CFS, with water temps in the mid forties. Expect to find snow and ice along the banks in areas, as we have had several snowstorms recently. Blue Wing Olive Mayflies, and midges are the most active bugs at this time.  Golden Stonefly nymphs, caddis larva, and larger mayfly nymphs are also available to trout opportunistically.  Brown Trout eggs can also be a food source at this point in time.  A nymph rig featuring larger attractor style nymphs, in tandem with smaller mayfly and midge emergers is a good bet here.

 

10/25/2019

       River flows are still about 200 CFS with water temps in the mid 40’s. Midges, Baetis, eggs, and smaller fish are all food sources for trout here.  Nymph rigs are the angling technique of choice, often fished with an attractor nymph as a lead fly, followed by small natural imitations of current food sources.  Streamer Fishing can also be good here at this time of year.

 

10/17/2019

        River flows are still about 200 CFS with water temps in the mid 40’s. The most prevalent aquatic insect activity as of late have been Baetis, and midges.  During hatches trout have been focusing on eating emerging insects on their way to the surface, but in the absence of a hatch trout have been feeding on nymphs closer to the river bottom.  Eggs are also a food source for trout at the moment so a pegged egg could be a good lead for your nymph rig.  Streamers are also another option that could produce strikes at this time of year.

 

10/10/2019

       The Blue River north of town is still flowing about 200 CFS with water temps in the mid 40’s. The most prevalent aquatic insect activity as of late have been Baetis, and midges.  During hatches trout have been focusing on eating emerging insects on their way to the surface, but in the absence of a hatch trout have been feeding on nymphs closer to the river bottom.  The recent freezing daytime temperatures, and snow we have just seen should drastically decrease any terrestrial insect activity in the Blue River Valley, so a nymph rig is the go to method of presentation now.  However, strong hatches of aquatic insects could bring trout to the surface to feed, so always evaluate the conditions at hand, and rig up accordingly.

 

10/4/2019

       The Middle Blue between Silverthorne and Green Mountain Reservoir is flowing near 200 CFS, with water temps in the mid forties.  Blue Wing Olive Mayflies, and midges have been the most prominent hatches, with a few larger caddis mixed in here and there.  Nymph fishing has been the most productive technique in general, but some trout will be eating on the surface during hatches.

 

9/13/2019

       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.

 

9/6/2019

       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.

 

8/23/2019

       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.

 

8/15/2019

       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. 

 

8/9/2019

       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.

 

8/1/2019

       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.

 

7/26/2019


       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.    
 

 

7/19/2019

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.

 

7/12/2019

       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.

 

7/4/2019
       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.

 

6/30/2019

       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.

 

6/13/2019

       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.

 

5/22/2019

              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.

 

4/18/2019

       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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