Current Conditions

Flow Rate
260 cfs
Trend Trend
🔴Dropping Fast - ≤ -30%
🟠Dropping - -10% to -30%
🔘Stable - -10% to +10%
🔵Rising - +10% to +30%
🔴Rising Fast - > +30%
0%

Flow data from USGS, USBR , and Colorado DWR .

Hatch Guide for South Platte River - North Fork

Gear Recommendations

ROD 5wt
LEADER 7.5ft , 2X-3X taper
TIPPET 4X-6X
INDICATOR Thingamabobber or foam
RIG Streamer rig
Fish: 10-14 inches avg, trophy to Private leases (Boxwood Gulch, Long Meadow Ranch) hold larger fish; public water 10-14 inches average

⚠️ REGULATIONS

Check the current Colorado Parks and Wildlife fishing brochure for the North Fork South Platte and the posted rules at your fishing site. A statewide summary does not establish access or replace any site-specific restrictions.

View official Colorado regulations →

*Verify current regulations before fishing. Rules may change.

Map South Platte River - North Fork

Nearby Rivers to Fly Fishing South Platte River – North Fork

Fish Species

Fly Fishing South Platte River - North Fork

Overview

The North Fork South Platte flows through wooded foothills and granite terrain toward the mainstem confluence. Riffles, pools and bank cover give it a different character from the mainstem tailwaters. Roberts Tunnel imports Blue River water upstream, so operations can change the river independently of local snowmelt.

Foothill Runs and Deeper Bends

Brown trout, rainbow trout and hybrids inhabit the river. A meadow-like run can call for a longer, delicate drift, while broken canyon water favors a shorter presentation in a defined pocket. Work cover and seam lines before attempting to cover a whole pool.

Roberts Tunnel operations and local runoff alter depth and clarity. Study the actual current and footing at the selected run. A sheltered edge may fish differently from the faster channel beside it, even within the same bend.

A Versatile Fly Box

Elk hair caddis and stimulators in sizes 14–16 provide dry-dropper options. A Hare’s Ear or Copper John beneath the dry can search a deeper lane. A parachute olive, CDC cripple or size 18 Adams offers another choice when fish are feeding near the surface.

Pheasant Tails and Zebra Midges can cover quieter water beneath an indicator. Olive or black Woolly Buggers offer streamer choices around deeper bends and bank cover. Vary the presentation with the fish’s response and the current, keeping spawning fish and redds undisturbed.

The North Fork’s appeal lies in its varied foothill structure. Read each run on its own and use the presentation that fits its seams, cover and depth.