Deckers

Deckers is my home water, and it’s also where most South Platte fly fishing happens — those two facts are related, and between them they explain almost everything about the place, good and bad. Highway 67 runs alongside the river for miles, so you can park, step out, and be casting in under a minute. No hike in. No permission to ask. That accessibility is why the parking pullouts fill by nine on a Saturday in June, and it’s also why Deckers is the right answer more often than the fly-shop chatter admits. Pressured water and unproductive water are not the same thing.

The reach sits below Cheesman Reservoir, which means it’s a tailwater: the dam releases from deep in the reservoir, so the river runs cold in August when freestone streams are pushing 70°F and warm enough in January to keep bugs hatching and fish feeding. Year-round is not marketing language here. It’s the reason people drive up from Denver in February.

Where it is and how to get there

Deckers is roughly an hour and a half from Denver. The usual approach is US 285 to Pine Junction, then County Road 126 south through Buffalo Creek to Deckers; the alternative is Highway 67 southwest from Sedalia. Either way you end up on the stretch of 67 that parallels the river, and that road is the access — there’s no single trailhead to aim for.

The fishable water runs several miles, from below Cheesman Canyon down past the Deckers bridge and on toward Trumbull. The named pullouts are listed further down this page, but the honest advice is simpler than a list: if the cars are stacked up at the obvious spot, keep driving. Two minutes in either direction usually buys you a hundred yards of water nobody is standing in.

What the water actually looks like

This is not canyon water. Where Cheesman above it is a boulder-strewn scramble with deep slots and technical pocket water, Deckers is broader, shallower, and far more readable — long riffles feeding into pools, defined seams, gravel and cobble you can actually walk on. It’s the friendliest water on the upper South Platte for someone still learning to read a river, which is a large part of why it gets fished so hard.

That openness cuts both ways. The fish see a lot of flies, and in clear low water they get selective in a way that feels personal. But the structure is legible: find the seam where fast water meets slow, find the drop-off at the tail of a riffle, and you’ve found where they’re sitting.

Flows: the number that decides your day

The gauge to watch is the USGS station below Brush Creek near Trumbull (06701900) — the closest one to Deckers — and the live chart at the top of this page is pulling from it right now. The green band on that chart is the wading window — the range where you can comfortably get around the river — which is narrower than the range where it fishes well. Don’t read a number above the band as “don’t come.”

Flows here are controlled, not natural, so they change when Denver Water decides they change rather than when it rains. The numbers that matter:

150–400 CFS is the productive window, and roughly 100–250 the wading sweet spot. In the middle of that the river is clean and moderate, the fish are spread through the runs instead of stacked, and you can cross where you need to. Two hundred is a number I’m happy to see on the drive up.

Under 150 CFS, drop to 6X. The water clears, the fish get inspection-close, and tippet diameter starts costing you takes.

Under 100 CFS — late summer, or January — the fish back into the deepest seams and stay there. This is 6X, sometimes 7X, small flies, and slow careful work. A heavy jig fished as a euro anchor is what moves them in the cold.

Over 200 CFS, 5X fluorocarbon is fine and the river gets more forgiving. Over 250, worms come loose in the current and fish push into the deeper troughs — tight-line a worm pattern with split shot and feel for the take through the rod.

300–400 CFS is not a casual wade. A spike to 300+ is a warning, not an invitation. That’s when I stop thinking about mid-river and start working the edges.

Past 400–500 CFS, forget delicate presentations entirely — heavy stonefly nymphs on 3X, fished deep. In a high-snow spring the gauge can reach 600–900 CFS, and in early May the river is often still manageable at 110–180 before runoff arrives properly.

The transition matters as much as the absolute number. A river that has just been bumped fishes differently from one that’s been sitting at the same release for two weeks — after a bump, worms and heavier point flies earn their place immediately.

Hatches through the year

Winter (December–February). Midges, and effectively only midges. This is when Deckers earns its reputation — the tailwater keeps the water temperature workable, the crowds thin out, and fish still eat. Small stuff, fished deep, and the window is the middle of the day — sleep in.

Spring (March–May). Blue-winged olives, and the best dry-fly opportunity of the first half of the year. BWOs like the weather everyone else hates — grey, cold, spitting snow — and a miserable afternoon in April is often the one that produces. Midges continue underneath the whole time.

Summer (June–August). Pale morning duns, caddis, and by late July the tricos that bring their own particular madness of tiny flies and rising fish that refuse everything. Terrestrials matter more than people expect from midsummer on — ants and beetles get blown onto the water off the banks, and a hopper-dropper is a legitimate way to cover this water when nothing is coming off.

Autumn (September–November). BWOs return, and this is arguably the best stretch of the year: the summer crowds are gone, the fish are feeding ahead of winter, and the cottonwoods along the road make it worth the drive on their own.

Worth knowing about May specifically — early May can still be excellent at 110–180 CFS with clear water and active fish, but once runoff arrives the character changes completely. That’s its own problem with its own answers, and I’ve written it up separately in the May runoff guide.

Regulations

Deckers sits in the reach running from the north boundary of the Wigwam Club downstream to Scraggy View picnic ground, and that water is artificial flies and lures only, with a bag, possession and minimum size limit of two trout, 16 inches.

The important part is what changes just upstream. From Cheesman Dam down to the Wigwam Club’s south property line — Cheesman Canyon — it’s flies and lures only and all trout must be returned to the water immediately. Same river, different rules.

And the boundary is a private property line — nothing you can see from the road. If you’re moving between the canyon and Deckers in a day, you’re crossing a regulation change without being told.

Both reaches are Gold Medal water.

Regulations are revised annually and the reach boundaries genuinely matter here, so treat this as orientation rather than authority — the signage at the access points and the current CPW brochure are what settle it.

Crowds, and how to fish around them

Deckers is busy. Pretending otherwise helps nobody. Summer weekends between about nine and four, the obvious pullouts are full and the obvious runs have someone in them.

The workarounds are unglamorous and they work. Go early — first light on a Saturday is emptier than two o’clock on a Wednesday. Go in winter, when the people who only fish in good weather stay home. Walk: most anglers fish within sight of where they parked, so ten minutes of walking removes most of them. And take the weather nobody wants, because the grey, cold, drizzling days are both less crowded and better for BWOs.

Wading and safety

The wading here is moderate — cobble and gravel, generally shin-to-thigh deep at normal flows, with crossable riffles at the tails of most pools. Felt or rubber both work, and studs help on the algae-slick rock in late summer — though I fish rubber soles without studs and just wade carefully on the slick stretches.

Two things deserve genuine caution. Flows are dam-controlled and can rise with no rain and no warning, so a crossing that was easy on the way out can be a problem on the way back — know your exit before you commit to the far bank. And winter ice on the rocks along the bank causes more trouble here than the current does.

What to have in the box

Small dark nymphs cover the majority of the year — midge larvae and pupae, mayfly nymphs in the 18–22 range, and something with a bead to get it down. Add BWO emergers and duns for spring and autumn, PMDs and caddis for summer, and a few terrestrials from July on. Streamers earn their place on high or off-colour water.

The patterns I actually fish here, year in and year out:

• Olsen’s Blowtorch, #16–18, orange tag when the river’s carrying colour and green once it drops and clears — the point fly more often than everything else on this list combined. The slim no-CDC version in #20 when Deckers falls under 100 CFS. Of every hundred flies I tie on in a season, about forty are this one, and Deckers is where I fish it most.
• Duracell Jig, #16–18, as the euro anchor from November into early spring. When Deckers drops below 100 CFS in January and the fish have backed into the deepest seams to wait out the cold, this is the swap when the Blowtorch isn’t moving them.
• Frenchie, point position on a euro rig or under an indicator in flows over 200 CFS. It earns its keep year-round on pressured Deckers fish.
• Walt’s Worm, euro setup, in flows under 200 CFS.
• RS2 as the emerger, and a San Juan Worm tight-lined with split shot when the river is over 250 and pushing fish into the troughs.

If I could only take one it’s a Blowtorch in #18, and it isn’t close. The Frenchie is what goes on when the Blowtorch has had its turn and the fish are still there, still eating, still not eating mine.

The single adjustment that matters most is tippet. Fluorocarbon 5X is the default; 6X below 150 CFS; and I’ll go to 7X below 100 when fish get inspection-close. Most people fish this water too heavy and then blame the flies. I know the sequence because I ran it for a couple of seasons.

Old dated conditions live in the hatch reports — and for the full walkthrough rather than this summary, the complete Deckers guide goes deeper still.

Where Deckers fits

If you’re new to the South Platte, start here. The water is readable, the access is easy, and the fish are plentiful enough to be forgiving of a mediocre drift. When you want the harder, more technical version of the same river, Cheesman Canyon is directly upstream. When you want big fish and open meadow water, the Dream Stream is further up the drainage. Deckers is the one you can fish on a whim, in any month, without planning your day around it. That’s the whole argument. I have more days here than I’d care to total up, and almost none of them started as a plan.