RIVER REPORT
South Fork South Platte River | Above Antero
The South Fork of the South Platte River above Antero Reservoir is a secluded and scenic stretch of water nestled in Colorado’s high country. This small but productive stream meanders through expansive meadows with views of distant mountain ranges, offering anglers the chance to catch wild brown, rainbow, and cutthroat trout. The river’s clear, cold water, combined with a mix of riffles, runs, and undercut banks, creates ideal fishing conditions, especially for those seeking a more intimate and technical fly fishing experience. The peaceful surroundings and unspoiled natural beauty of the area make this section of the South Fork a hidden gem for anglers looking to enjoy solitude and abundant wildlife in Colorado’s remote landscapes.
CONDITIONS
Weather & Flow Data Reported From OpenWeather and USGS
Recent Reports
South Fork of the South Platte River Above Antero Reservoir – April Fly Fishing Report: As of early April, the South Fork of the South Platte River above Antero Reservoir is transitioning into spring conditions. This section, characterized by meandering meadow streams and beaver ponds, primarily holds populations of brook trout. Anglers can anticipate hatches of midges and Blue-Winged Olives (BWOs) during warmer midday periods, providing opportunities for both nymphing and dry fly fishing. Effective nymph patterns include Pheasant Tails, Copper Johns, and RS2s in sizes 16–20. For dry fly enthusiasts, BWOs and midge patterns in sizes 18–22 can be productive during active hatches. Additionally, small streamers such as Woolly Buggers and Sculpzillas can yield positive results, especially during overcast conditions. Employing light tippets (5x to 6x) and a stealthy approach is advisable due to the river’s clear water and wary trout. Focusing efforts during the warmest parts of the day, typically late morning to early afternoon, can enhance success rates. Overall, the South Fork of the South Platte River above Antero Reservoir offers rewarding opportunities for anglers this April.
Water Flow Data
5 Day Outlook
BUGS
South Fork South Platte River’s insect life provides a smorgasbord for hungry trout. AvidMax recommends these key fly patterns:
THE FISHERY
The South Fork of the South Platte River above Antero Reservoir offers anglers a peaceful high-country fishing experience, with cold, clear waters and healthy trout populations set against the expansive beauty of Colorado’s South Park region.
Fish Species
The South Fork of the South Platte River above Antero Reservoir is home to wild populations of brown and rainbow trout, with browns being the more dominant species. Trout in this section generally range from 10-16 inches, and the river’s proximity to the reservoir provides opportunities to catch larger fish, especially during the fall when browns are more active.
Unique Fishing Conditions
This high-altitude section of the river features a mix of shallow riffles, deep runs, and undercut banks, offering great dry fly and nymphing opportunities. Water flows fluctuate seasonally, with spring runoff bringing higher flows and summer and fall providing ideal conditions for fly fishing. During summer, hatches of caddis, blue-winged olives, and terrestrials such as hoppers and ants offer excellent dry fly action. Nymphing with small midge, mayfly, and stonefly patterns (sizes 16-22) is productive throughout the year.
Access and Regulations
Public access to the South Fork of the South Platte River above Antero Reservoir is good, with several access points along Highway 285 and surrounding public lands. While there are no special regulations in this section, catch-and-release is encouraged to preserve the fishery, especially for larger trout. Water flows can vary significantly due to seasonal snowmelt and rainfall, so anglers should check conditions before heading out for optimal fishing.
TACTICS
AvidMax encourages anglers to explore their full repertoire on the South Fork of 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 Fork of the South Platte River brings unique joys and challenges for AvidMax anglers:
Spring
Spring runoff can create higher flows, but trout are active and nymphing with stoneflies, baetis, and San Juan worms can be productive. Focus on slower water near the banks and deeper pools where fish hold during runoff.
Summer
Summer offers excellent dry fly action with hatches of caddis, PMDs, and terrestrials like hoppers. Early mornings and late evenings provide the best fishing, especially during hotter parts of the day when fish are less active.
Fall
Fall is a great time to target aggressive brown trout as they prepare to spawn, making streamers and egg patterns highly effective. Focus on deeper runs and pools where trout congregate during this season.
Winter
Winter fishing is slower, with trout holding in deeper, slower water. Nymphing with small midges and baetis patterns is the most effective approach, particularly during the warmest part of the day.
REMEMBER
The South Fork of the South Platte River above Antero Reservoir offers a peaceful and scenic fishing experience, with cold, clear waters supporting healthy populations of wild trout. However, the river’s remote location and sensitive ecosystem demand careful attention and responsible fishing practices.
Water Conditions
Seasonal runoff, especially in spring, can lead to higher water levels that may impact fishing conditions and wading safety. Always check current flow rates before heading out to ensure favorable fishing conditions.
Regulations
This section of the river may have catch-and-release restrictions and rules requiring the use of artificial flies and lures only. Familiarize yourself with these regulations to help maintain a healthy trout population and protect the fishery.
Safety
The high-altitude setting means weather can change quickly, with cold temperatures and storms possible even in summer. Wear proper gear for changing conditions, and be cautious while wading, as the riverbed can be rocky and slippery.
COMMENTS
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