FishCondishSouth Platte River, CO Fishing Report & Live Conditions
South Platte River, CO fishing report
The South Platte tailwater below Cheesman and Eleven Mile reservoirs is primarily trout country — brown and rainbow trout dominate, with some brook trout mixed in the colder upper reaches. Winter and early spring bring the best dry-fly action as midge hatches fire consistently in the canyon. Late spring through summer, Blue-Winged Olives and caddis bring fish to the surface. Trout hold year-round here, but cold tailwater temps keep them active even in summer heat. The other species you mentioned — bass, walleye, catfish, chain pickerel, panfish — aren't realistic targets in this particular tailwater canyon environment, which runs cold and swift.
Focus on seams where fast water meets slow, especially downstream of boulders and along undercut banks. Nymphing with midges, Pheasant Tails, and Zebra Midges under an indicator produces consistently when fish aren't rising. Match your presentation to flow — higher water pushes fish tight to structure and banks, low clear water demands longer leaders and smaller flies, often size 20-22. Water temperature around 50-58°F activates aggressive feeding. Drifting streamers like Sculpins or Woolly Buggers through deeper pools moves larger browns, especially in fall when they stage pre-spawn.
South Platte River, CO river flow
The closest active USGS gauge to South Platte River, CO is SOUTH PLATTE RIVER ABOVE CHEESMAN LAKE, CO. (site 06700000), about 3 miles away. It drains roughly 1,627 square miles. Flow is the single best predictor of where fish sit in moving water, so it is worth knowing what normal looks like before you read today's number.
In July, this gauge typically runs about 233 cfs.
| Month | Median flow |
|---|---|
| Jan | 12 cfs |
| Feb | 14 cfs |
| Mar | 40 cfs |
| Apr | 117 cfs |
| May | 158 cfs |
| Jun | 240 cfs |
| Jul | 233 cfs |
| Aug | 220 cfs |
| Sep | 115 cfs |
| Oct | 57 cfs |
| Nov | 43 cfs |
| Dec | 20 cfs |
Median flow from the USGS daily-statistics record. For the live flow, gage height, water temperature, and today's fishing score, open the South Platte River, CO dashboard.
What's biting near South Platte River, CO
The species most likely to be feeding the tailwater and canyon trout water below the reservoirs: largemouth and smallmouth bass, trout, walleye, chain pickerel, catfish, and panfish. FishCondish grades every hour of the day for South Platte River, CO and gives each species its own bite forecast, so you can see which window is worth fishing before you load the truck.
South Platte River, CO fishing FAQ
What fish can you catch at South Platte River, CO?
The species bite forecast for South Platte River, CO covers what's likely feeding there, including largemouth and smallmouth bass, trout, walleye, chain pickerel, catfish, and panfish — and updates with the live conditions.
What's the best time of day to fish South Platte River, CO?
Dawn and dusk are usually the most productive windows on the tailwater and canyon trout water below the reservoirs, particularly when the barometric pressure is steady or falling. FishCondish grades every hour of the day so you can pick the best one.
When is the best season to fish South Platte River, CO?
Spring and fall are typically strongest on the tailwater and canyon trout water below the reservoirs as water temperatures sit in the productive range, with summer fishing best early and late in the day. It varies year to year, so check the live conditions before you head out.
How do I know if it's a good day to fish South Platte River, CO?
FishCondish combines wind, water level, water temperature, pressure trend, and moon phase into a single 1–10 fishing score for South Platte River, CO, updated in real time — a quick go/no-go read before you make the trip.
Fishing tips for South Platte River, CO
New to these waters? Start with these beginner-friendly guides: