Colorado Fishing Reports ยท South Platte Basin
St. Vrain Creek runs through Lyons in a channel rebuilt after the 2013 flood, with good town access and wild trout.
Looking for the latest St. Vrain Creek Lyons river report? This page is updated by the AvidMax fly shop team with live flows, current conditions, hatches and the flies working now on the St. Vrain Creek โ Lyons.
Current flows
Wind forecast
Lyons fishing report
Updated November 7, 2026.
Flows are low and steady, about 16 to 18 cfs, and the water is crystal clear in the low 50s.
Midges and BWOs are the main bugs. A dry-dropper with a Sparkle Dun or small cripple over an RS2, Juju Baetis or perdigon is the best approach. Fish are holding in the deeper water and spook easily.
Load your fly box
Before you head to Lyons, bring: RS2 Emerger #18-22, JuJu Baetis #18-22, Perdigon #18-20, Sparkle Dun #18-20, Zebra Midge #20-22, Parachute Adams #18-20, Pheasant Tail Nymph #16-20, Black Beauty #20-24, Egg #14-16.
Flies working right now
The flies above that we have in stock right now.
Lyons river details
| Access | Lyons town parks such as Bohn and Meadow parks, plus some canyon pull-offs. The rest is private. |
|---|---|
| Elevation | About 5,400 ft |
| Drive from AvidMax | About 59 miles, roughly 1 hour 20 minutes from our Centennial shop |
| Best season | Spring and fall |
| Fish | Brown and rainbow trout |
| Regulations | Check Colorado Parks and Wildlife for the current rules. A Colorado fishing license is required. |
| Leaders and tippet | 9 ft leaders, 5X to 6X tippet |
| Camping | Meadow Park in Lyons (seasonal) |
| Kids | Yes. Town parks have easy, gentle access. |
| Good to know | The river was rebuilt after the 2013 flood and is still settling in. |
Fishing by season
Winter
Midges.
Spring
BWOs.
Summer
Runoff, then caddis.
Fall
BWOs. Good fishing.
How to get there
Park at Bohn Park or Meadow Park in Lyons.