Blue River Silverthorne
Fishing Report
UPDATED: 7/28/25
Flow: 198 CFS River Graph
The "tailwater" section of Blue River through Silverthorne fishes fairly consistently year round. The fish here are technical and sometimes pickier than you would expect. Water temps normally stay within the lower forties (fahrenheit), which doesn’t produce a large variety of hatches. For the most part, small midge larva, and Mysis Shrimp (small clear/white shrimp inhabiting Dillon Reservoir), are staples of the trouts diet. Things start to get more interesting if Dillon Reservoir reaches capacity and “spills” through the top release of the dam, instead of the bottom. This causes a larger variety of aquatic insects that live in the Blue River to become active, and therefore more available to trout.
The best technique is usually nymphing under a small, inconspicuous indicator. Adjust your weight and indicator depth depending on the depth of the piece of water you are working, and to the depth at which the fish are holding. Seeing rising fish is a possibility, as is seeing some action on streamers.
Current Conditions:
RIVER FLOW:
198 CFS
WATER TEMPERATURE (DEGREES F):
40's
WATER CLARITY:
Clear
CURRENT FOOD SOURCES:
| Midges | Mysis Shrimp | small mayflies(BWO and PMD) | leeches, smaller fish, worms and eggs etc.
Flies to Try
NYMPHS:
San Juan Worm 12-16 | Red or Pink Squirmy Worm | Epoxy mysis #18 | Natural Pheasant Tail #18-22 | Mayfly Nymph BWO size 18-20 | RS2 Dun 18-22 | Jujubee Midge #18-22 | Miracle Midge #20-22 | WD-40 Chocolate and Black #18-22|
DRIES:
| Elk Hair Caddis Yellow #18 | Peacock Caddis #18 | Extended Body BWO size 18-22 | Extended Body BWO #18-22| Matthew's Sparkle Dun BWO | Griffith’s Gnat size 18-24 | Umpqua Adult Midge Dark 20-22 | CDC Morgan's Midge size 20-22
STREAMERS:
| Thin Mint #6 | Near Nuff Sculpin olive size 04-06 | Super Bugger Tan size 6 | Pop’s Bugger pearl/grizzly size 8 | Pine Squirrel Leech in black size 12 | Slump Busters in olive and natural | Crystal Bugger white sizes 8-12 | Halebop Leech wine no bead size 8
Guide Tip of the Week:
The Blue River in Silverthorne is fishing tough right now. Fish numbers seem to be lower than normal and the fish that are present have been getting a lot of pressure from anglers. We would recommend driving further to rivers like the Arkansas, Eagle or Colorado to find some more productive fishing.
If you do want to fish The Blue, be prepared with small flies, light tippet, and technical sight fishing opportunities.
RIVER ACCESS
Also check out the Town of Silverthorne's Blue River Fishing Access Map
OTHER LOCATIONS
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