Time: 11:30AM – 3:00PM
Location: Downstream from Gross Reservoir
South Boulder Creek 10/28/2024 Photo Album
As October’s mild weather streak lingered for one final day, I knew colder temperatures were just around the corner. With a dip in the forecast beginning Tuesday, October 29, I decided to make the most of the lingering warmth and venture out for what might be the season’s last balmy outing. After a slow Friday on the Big Thompson, I was ready for a change and shifted my focus to tailwaters, checking the flows on South Boulder Creek. With the outflows from Gross Reservoir holding steady at a promising 65 CFS, I packed up and headed out.
Pocket Water in the ShadeAfter a quick morning dentist appointment, I arrived at the Walker Ranch Loop Trailhead around 11:00 AM. It was a beautiful 64 degrees—perfect for late October—and I geared up with my Loomis two-piece five-weight rod. Prepared for a possible cool down, I wore my quick-dry short sleeve undershirt layered under my fishing shirt, with a Brooks long-sleeve undershirt and raincoat packed away just in case I needed additional warmth. I made my way down to the creek, excited to start the day.
I reached the creek by 11:30 AM and kicked things off with a double dry setup: a peacock hippie stomper trailed by a size 14 light gray deer hair caddis. This combination paid off, and by the time I broke for lunch at 12:15 PM, I landed four small browns and one rainbow. Both the stomper and the caddis were successful, and though the trout were modest in size, the steady action was encouraging.
Decent Early CatchWhile enjoying my lunch, a light chill crept in from the morning’s hike-induced perspiration, so I swapped my shirt for the Brooks long-sleeve layer. That added warmth made a noticeable difference, as I prepared to resume fishing.
After lunch, I stuck with the double dry setup, which continued to yield results, bringing my fish count up to nine. Most were still in the six to nine-inch range, with the smaller size dominating, but a rise is a rise in late October.
Bank PocketAs I continued, I noticed small stoneflies flitting about, one even landing on my shirt long enough for a close inspection. I attempted a photo, but naturally, it took off, before I could snap the shot. Inspired, I decided to swap out the caddis for a size 18 black stonefly pattern I’d tied a few years back for an October hatch just like this one. I trailed it behind the hippie stomper, and was rewarded with a small brown trout for my effort, boosting the count to ten.
The stonefly pattern, however, wasn’t a consistent producer, so I switched tactics again, tying on Jake’s Gulp Beetle. It wasn’t a game-changer, but it did result in two subtle downstream takes that bumped my count to twelve. At this point, though, the bite was slowing down, so I made another shift to a dry/dropper setup.
Jake’s Gulp BeetleFor this new setup, I kept the hippie stomper on top, extending the leader to three feet and adding a salvation nymph followed by a soft hackle emerger. Dark clouds were gathering, and I noticed a few sporadic rises on the water, suggesting some blue-wing olive activity. The emerger was the perfect choice for these conditions, and for the rest of the afternoon, I managed to land four more trout.
Curled Brown TroutHalfway through, both the salvation nymph and soft hackle emerger snapped off. I re-rigged, this time swapping the soft hackle for a size 20 sparkle wing RS2, which turned out to be a good call. The salvation nymph and RS2 each enticed a couple of trout to bring my total to sixteen by the end of the day.
By 3 PM, the clouds had overtaken the sun, and while the air temperature held up, the bite had slowed considerably. Sixteen trout on October 28 marked a solid day, even if the fish were small. This warm fall day was a welcome reprieve, filled with the peaceful solitude of the canyon and the beauty of late October on the creek. If this does turn out to be my last trip of the season, I’ll head into winter feeling satisfied and grateful for one last balmy fall day
Fish Landed: 16