RIVER REPORT
South Platte River | Dream Stream
The South Platte River at the Dream Stream, located between Spinney Mountain and Eleven Mile Reservoirs, is a premier fly fishing destination renowned for its large, trophy-sized trout and seasonal runs of kokanee salmon. This meandering section of river flows through the high-altitude plains of South Park, providing anglers with stunning views of the surrounding mountain ranges. Known for its challenging yet rewarding fishing, the Dream Stream offers clear, cold waters, deep pools, and undercut banks that hold large brown, rainbow, and cutthroat trout, particularly during spawning seasons. The combination of pristine water, diverse wildlife, and the chance to catch a true trophy makes the Dream Stream a bucket-list destination for fly fishers seeking one of Colorado’s most iconic and productive waters.
CONDITIONS
Weather & Flow Data Reported From OpenWeather and USGS
Recent Reports
South Platte River – Dream Stream – April 2025 Fly Fishing Report: As of late March 2025, the Dream Stream section of the South Platte River is experiencing low flows, approximately 55 cubic feet per second (CFS), which is notably below average for this time of year. These reduced flows have prompted most migratory fish to return to Eleven Mile Reservoir, leaving primarily resident trout in the system. Anglers should be mindful of spawning activity during this period. It’s crucial to avoid disturbing fish on redds to support the health of the fishery. The river has been notably busy, particularly in the lower sections, so plan accordingly. Effective patterns during this time include midges in various stages, with the dry fly fishing being productive during specific windows. Additionally, with the onset of spring, Blue-Winged Olive (BWO) hatches are beginning to appear, so carrying BWO patterns is advisable. Given the current conditions, focusing efforts during the warmest parts of the day, typically late morning to early afternoon, can enhance success rates. Employing light tippets (5x to 6x) and a stealthy approach is advisable due to the river’s clear water and wary trout. Overall, while the Dream Stream presents certain challenges this April, mindful and strategic approaches can still yield rewarding experiences for anglers.
Water Flow Data
5 Day Outlook
BUGS
The South Platte River’s insect life provides a smorgasbord for hungry trout. AvidMax recommends these key fly patterns:
THE FISHERY
The South Platte River at the Dream Stream is a world-famous fishery, known for its trophy-sized trout and seasonal runs of migratory fish, set between Spinney and Eleven Mile Reservoirs in the stunning South Park landscape.
Fish Species
The Dream Stream is famous for its trophy-sized brown, rainbow, and cutthroat trout. Trout commonly range from 18-24 inches, with the possibility of even larger fish, especially during the spring rainbow and fall brown trout spawning runs. Additionally, kokanee salmon migrate into this section from Eleven Mile Reservoir in the fall, adding another exciting target for anglers.
Unique Fishing Conditions
This section of the South Platte is a meandering meadow stream with crystal-clear water, making for technical fishing. Anglers must use stealth and precise presentations due to the clear water and wary fish. The best fishing occurs in spring and fall during the trout spawning runs. Dry fly action is excellent during summer with blue-winged olives, midges, and caddis hatches. Nymphing with small midge, mayfly, and egg patterns (sizes 16-22) is productive year-round, especially in deeper pools and seams. Streamers are effective for targeting aggressive, pre-spawn trout in the fall.
Access and Regulations
The Dream Stream is part of Colorado’s Gold Medal Waters, meaning it is managed for trophy trout. Access is easy, with parking available at the Spinney Mountain State Wildlife Area, and the stream is relatively open for wading. Strict regulations require the use of artificial flies and lures only, with catch-and-release encouraged to maintain the fishery’s quality. Seasonal flows can fluctuate with releases from Spinney and Eleven Mile Reservoirs, so checking water conditions is recommended before fishing.
TACTICS
AvidMax encourages anglers to explore their full repertoire on the South Platte River:
Nymphing
Nymphing allows anglers to target trout feeding below the surface, with or without an indicator, making it an effective technique for covering deep runs and slow pools where fish are actively feeding on subsurface insects.
Dry Fly Fishing
Fishing with dry flies provides the ultimate surface experience, imitating adult insects and offering exciting visual strikes, particularly during hatches when trout are feeding on the water’s surface.
Streamer Fishing
Using streamers mimics baitfish and other larger prey, offering an aggressive approach that can entice bigger, predatory trout, especially when fishing deeper water or fast-moving currents.
SEASONS
Each season on the South Platte River brings unique joys and challenges for AvidMax anglers:
Spring
Spring sees the arrival of spawning rainbows and cutthroat trout from Eleven Mile Reservoir, making it an excellent time for nymphing with egg patterns, San Juan worms, and small midges. Focus on deeper runs and pools where these large fish congregate.
Summer
Summer offers fantastic dry fly fishing with strong hatches of caddis, PMDs, and tricos. Use long leaders and light tippets for delicate presentations in the crystal-clear water.
Fall
Fall is prime time for targeting large brown trout as they migrate upstream to spawn. Streamers and egg patterns are effective, especially when fished near deeper pools and undercut banks.
Winter
Winter brings lower flows and fewer crowds, but fish remain active in deeper pools. Nymphing with small midges and baetis patterns is key, as the cold water slows down trout metabolism.
REMEMBER
The Dream Stream section of the South Platte River is world-renowned for its large trophy trout and seasonal migrations of brown and rainbow trout. However, its popularity and delicate ecosystem require responsible fishing and adherence to regulations to protect this special fishery.
Water Conditions
Flow rates in the Dream Stream are controlled by releases from Spinney and Eleven Mile Reservoirs, which can vary seasonally. Always check flow levels before heading out, as low flows can make the fish skittish, while high flows can impact wading safety.
Regulations
This stretch is strictly catch-and-release, with artificial flies and lures only. Make sure you’re familiar with these rules to help preserve the quality of the fishery and maintain the trophy trout population.
Safety
The wide-open, high-altitude landscape is prone to sudden weather changes, including strong winds and storms. Dress in layers, prepare for rapidly shifting conditions, and wear proper wading gear, as the riverbed can be slippery and the currents strong, especially during spring runoff or after reservoir releases.
COMMENTS
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