Colorado · Park, Jefferson & Denver Counties

South Platte River

Colorado's premier tailwater fishery, from the wild limestone canyon of Cheesman through Deckers to the Platte River Greenway through Denver.

Photo: Thomas Elliott, CC0
River Length ~450 mi
Paddleable Sections 3
Headwaters Elevation 11,000 ft
Fishery Gold Medal

About the River

The South Platte rises near Hoosier Pass in South Park and flows southeast through one of Colorado's most storied fishing landscapes. In the high meadows above Elevenmile Canyon Reservoir, the Dream Stream, a six-mile reach between Spinney Mountain Reservoir and Elevenmile Canyon Reservoir, draws anglers chasing giant wild rainbows and a rare landlocked kokanee salmon run each fall. Below Elevenmile the river descends through canyon country toward Cheesman Canyon, a narrow limestone gorge below Cheesman Dam, where steady tailwater releases keep the river at prime fly fishing temperatures year-round. Both stretches are Gold Medal, Wild Trout waters holding world-class rainbow and brown trout populations.

Below Cheesman Canyon the river opens into the Deckers corridor, lined with cottonwoods and campgrounds popular with wade anglers and kayakers. Strontia Springs Reservoir briefly impounds the flow before the water escapes through Waterton Canyon, a six-and-a-half-mile corridor accessible only by foot and bicycle. South of Denver the South Platte broadens through Chatfield State Park, then threads the Platte River Greenway through Littleton, Englewood, and downtown Denver to Confluence Park.

The primary guide gauge near Trumbull captures flows in the Deckers reach and represents conditions through Cheesman Canyon. Peak snowmelt runoff arrives April through June; by late July the river settles into the lower, clearer water that favors technical dry-fly fishing. No permits are required for any section.

Fly Fishing Gold Medal
Kayaking / SUP Class I–II
Floating Packraft · Inflatable
Rafting Sections 2–3
Family Greenway

Flow Guide

Optimal CFS by pursuit

The table below shows recommended CFS ranges for each major activity at each section. Status badges reflect the current reading from the closest gauge.

Live
-- CFS
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Pursuit Cheesman Canyon Deckers Denver Greenway
Minimal
Low
Good / Prime / Primo
Running High
Too High

* Flow ranges are general guidelines. Conditions vary; always assess local hazards before launching. Portage all low-head dams in the Denver metro.


Interactive Map

Put-ins, take-outs & gauges

Put-in
Take-out
River Gauge
Tributary Gauge
Fishing Access

River Sections

Three distinct reaches

Full gauge map

Related Rivers

Continue the journey

Live gauges, 24-hour charts & forecasts

Check real-time flows at every station on the South Platte before you drive to the put-in.