The Colorado River Between the towns of Kremmling, CO and Parshall, CO offers several public fishing accesses along U.S. Route 40.  The river gradient is fairly mellow through out this section, and offers slow runs, gentle riffles, and deeper holes.   This water is excellent for both nymph, and dry fly fishing.  If you don’t see risers, then fish nymphs. Since this water is a little slower, and shallow in spots, a heavy rig is not usually needed.  





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Current Conditions:


River Flow (Cubic Feet Per Second): 

Flows are currently near the 1000 CFS zone below  Parshall.


Water Temperature (degrees F): 

High 40's through mid 50's.


Water Clarity:

1/2' through 2' , with deteriorating conditions in the afternoon.


Current Food Sources:

Salmonfly nymphs,  golden stonefly nymphs, midges, Baetis, caddis larva/pupa/adults, eggs, worms, small fish


Flies to Try:


Guides Choice Dozen $24.99



Pat's Rubber Leg's olive, black, or brown size 8 -12 | TDJ Golden Stone size 10-16 | Tungsten Flashback CDC Pheasant Tail szie 14-16 | Devil Jig Nymph gold or copper size 16 | Sparkle Wing RS2 black or olive size 18-22 | Chocolate Foam Wing size 18-22 | Black or purple Jig zebra Midge size 16-20 | Mercury Black Beauty size 18-24 | Pegged Eggs Gold Roe, Peach PearlMontana Roe, or Ruby Roe |



  Crystal Stimulator orange or yellow size 10-14 | Reed Ryan's Rouge Stone ChubbyParachute Adam's size 16-22 | Elk Hair Caddis size 12-18, olive, brown, or black | Quigley's Film Critic BWO size 18-20 | Parachute Extended Body BWO size 16-22



 Sculpzilla olive or black size 4-8 | Thin Mint size 2 - 6 | Articulated Goldie size 2 - 6 |  Slump Busters olive or black size 4-6 | Bead Head Mini Leech olive/black or wine size 8


guide tip of the week:


The river may be high with run off, but fishing is still a go.  As long as the water doesn't look like chocolate milk it is worth fishing in our opinion.  Search the water for softer currents, such as back eddies, wide areas of the river, and pockets behind structure in the river/along the bank.  Concentrate on fishing these zones for the most part.


 Check out THE REPORT BELOW,  from a recent trip to Byer's Caynon with our Guide John Spriggs.  Also if you enjoy skiing it is well worth watching John's documentary The Book of Pow, which is one of the best, strictly Colorado filmed powder skiing documentaries ever made.  Keep in mind CO has one of the most avalanche prevelant snow packs around, and these guys have the knowledge to ski these crazy lines in it.


Byers Canyon is a short gorge on the upper Colorado River in Grand County, Colorado. The canyon is approximately 4 miles long and is located in the headwaters region of Colorado between Hot Sulphur Springs and Kremmling. This is a beautiful little canyon, full of Brown trout, some big ones too! The wading and walking in the canyon can be very difficult as the banks are lined with big boulders, and you have to hike a couple hundred feet down to the river from the road, access is easier at the mouth of the canyon.

Flys: Pat’s rubber legs 12-8, olive and brindle, Foam wing RS2 size 18, Beatis, and midge patterns

Fished a little slow, water seemed worse for clarity in the canyon compared to the mouth of the canyon and below. Fish seemed to want stoneflies and rs2s.

River Conditions

CFS: 650cfs

Weather Conditions: Sunny and to overcast, 60

Water Clarity: off color 1.5 feet

Water Temp: 45

Trout Holding: Fish were holding tight against the banks, and in the back eddys, along the foam lines.


Guide tip of the Day

Work the slower water against the banks, and eddys, if you find a fish holding in the back eddies or slower water, you will usually find more there, so keep fishing it and adjust depth for deeper pockets! !






Recent Media: 


Byer's Caynon, this is one cool place.  It is steep, narrow, and tough to navigate, but well worth it. Photos by guide John Spriggs


Uniquely colored browns in this caynon, also take note of the water clarity ( 5/6/2020)


Brown Trout taken on an olive/brown size 8 Pat's Rubber Leg's, and a size 18 grey Sparkle Wing RS2.




Bug Life tatted on my chest:  Byers Caynon usualy has a prolific Yellow sally ( pictured below)  hatch just following the Salmon Fly Hatch.

Baetis (pictured above), Caddis, and other bugs are abundant as well.




Recent History:


Looks like midges and Baetis are back on the menu boys!  Oh wait they never left, midges and Baetis are almost always on the menu.  These "Upper C" midges could be imitated with a Black Beauty or Chocolate Foam Wing Emerger, and the small Baetis nymphs could be imitated by a grey Darth Baetis, or Natural Pheasant Tail nymph.


P.S. it is a proven fact that a new puppy increases your luck up to 75%




upper C big head brwn.jpg

upper C puppy.jpg