Time: 11:00AM – 2:45PM
Location: Below Gross Reservoir
South Boulder Creek 08/16/2024 Photo Album
My most recent day on South Boulder Creek, 08/07/2024, was successful; but it did not satisfy my ongoing need for fishing to the western green drake hatch. After returning from our camping trip to the Taylor River, I checked the flows on South Boulder Creek, and initially they were reduced to 127 CFS. I had an open date on Friday, 08/16/2024, and I kept watch on the weather, flows and wildfire status; and fortunately everything aligned for a day trip. The flows bumped slightly to 133 CFS on Thursday, but this was not enough to deter me from my anxiously anticipated trip.
The temperature was a toasty upper seventies, when I arrived at the Walker Ranch Trailhead Loop. I quickly gathered my gear and fit together my two piece Loomis five weight, and I assured myself that I was in possession of my green drake fly box. Yes, I have a fly box that is almost entirely filled with five versions of western green drake dry flies.
First of Several Parachute Green Drakes
By 11:00AM I was stationed in South Boulder Creek. I decided to go directly to a parachute green drake, and I was rewarded in the first fifteen minutes with four trout, and the quartet included a gorgeous thirteen inch brown trout with dark black ink spots. I was cautiously optimistic that my goal of fishing to green drakes was on the path to fulfillment. I continued advancing upstream, and by the time I broke for lunch, the fish count rose to ten. The one hour of fishing was rather action packed; however, it was not without its share of refusals and fishing to attractive spots with no action. After seven fish the olive grizzly hackle on the parachute fly got shredded, so I switched to another matched copy to continue my day.
While eating lunch I observed several natural western green drakes, as they floated slowly upward from the stream surface. I was encouraged by this sighting, as I knew this translated to fish eagerly searching for the large food items. Between 12:15PM and 2:45PM a scenario similar to the morning evolved on South Boulder Creek. I moved steadily upstream and tossed casts to all the likely locations, and quite often a fish responded. A sure sign that my fly was a solid imitation was how aggressively the fish inhaled it. I needed the assistance of my hemostat to remove quite a few flies, but I feel fairly certain that the fish were released unharmed. Ironically obvious deep pools were not as productive as some very marginal spots characterized by small pockets and moderate riffles near submerged boulders. I popped casts to any likely spot, and quite often I was surprised by the results.
Perfect Water for Green Drake Prospecting
Rainbows Also Love Green Drakes
By 2:15PM the pace of the action slowed, and refusals began to dominate the scene. The fish count rested in the upper thirties, so I decided to experiment with other versions of western green drakes. First a size 14 green drake comparadun went on my line. The fly looked very similar to the naturals with its large spread out deer hair wing, but it produced no fish. I returned to a new parachute green drake, and it nudged the fish count upward, but refusals began to outweigh takes. I managed to coax some takes by twitching the fly during across and downstream drifts, and apparently the motion imitated the naturals attempting to take off. Eventually even this tactic failed to produce, and fish were looking at the fly but not committing.
I spotted a few pale morning duns, so I speculated that the fish’s selectivity shifted to PMD’s, so I replaced the green drake with a peacock hippie stomper and trailed a light gray size 16 comparadun. The hippie stomper and comparadun were primarily drawing looks with no takes. In a final effort to shift the momentum back in my favor, I switched to a user friendly green drake that trailed a cinnamon comparadun. Neither of these flies clicked, so I clipped my flies to the rod guide at 2:45PM and began the return hike which included the one mile uphill struggle at the end. This was my third trip to South Boulder Creek, and it was the first, where my exit hike took place during clear skies and direct sunlight. It was hot.
So Many Speckles on This Rainbow
I landed forty trout, and every fish ate a parachute green drake. There was a period after lunch when the action could only be described as torrid. It seemed as though it did not matter where I tossed the fly, and a fish would crush the low floating paradrake. My goal was to meet a green drake hatch in 2024, and Friday’s fly fishing realized my objective. I am not certain another opportunity to fish green drakes on South Boulder Creek will arrive, but I will restock my green drake fly box just in case.
Fish Landed: 40

Early Honey Hole
South Boulder Creek Bruiser
Pretty Green Drake Eater
Splendid Shelf Pool
Afternoon Best
Very Attractive Pool
Evening Action
Shelf Pool Bonanza
Rain Yields Mushrooms
Small Stream
Early Catch
Big Boy
Home of Big Boy Between Branch and Log
Salivating Over This Stretch
256 CFS
Evicted by the Swimmers
First Decent Fish
Nice Deep Run Along the Bank
Love the Dark Ink Spots
Slick in the MIddle of the River
Finish Line
Near the Start
Early Eater
Promising Run
Decent Rainbow Joins the Parade
Sparse Spot Pattern
Exquisite Colors
Love This One
Midstream Pockets
Highlight of the Day
Tough Cast Beneath the Branches
Early Success Story
Ben on the Board
Focused
The Fish Dove into the Aquatic Goop
Fly Change Knot Tying
Pretty One
Wide and Shallow Near the Start
Finning in the Net
Good Start
Prime Pool
Handle with Care
A Rare Double
A Very Decent Brown
Bank Dwellers?
Best Brown Trout on the Day
Another Smooth Pool
Wader Top and Stocking Feet Seams
Large Seam Split on This Foot
The Other Foot
This Clearly Shows How the Tape Peeled Away Only In the One Section Where It Was Not Properly Adhered
The Other Foot
Prime Rainbow Spot
Moose Crossing
Morning Brown Trout
Nice Spot
Love the Pattern on This Rainbow
Excellent Brown Trout
Deep Body Color on This Rainbow
Top Notch Brown
Shelf Along the Far Bank Yielded Two Nice Rainbows
Pretty in Pink
Wide Pool